diff --git a/src/main/res/values-cs-rCZ/strings.xml b/src/main/res/values-cs-rCZ/strings.xml
index 369ff96..22f5438 100644
--- a/src/main/res/values-cs-rCZ/strings.xml
+++ b/src/main/res/values-cs-rCZ/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Přihlašovací logo</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 hodin</item>
         <item>Nikdy</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Všechny SMS nesynchronizovány</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 hodina</item>
         <item>3 hodiny</item>
@@ -105,51 +80,6 @@
         <item>24 hodin</item>
         <item>Nikdy</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Nahrát SMS při příjmu</string>
     <string name="pref_sync_wifi">Synchronizovat přes Wi-Fi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Připojení se nezdařilo. Ujistěte se, že se připojujete ke správnému serveru</string>
     <string name="error_http_connection_failed">Nezdařilo se vytvořit HTTP připojení. Prosím ujistěte se, že na druhé straně je webový server.</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Ohodnotit!</string>
     <string name="ma_title_add_account">Přidat účet</string>
diff --git a/src/main/res/values-cs/strings.xml b/src/main/res/values-cs/strings.xml
index 2780360..c6c5608 100644
--- a/src/main/res/values-cs/strings.xml
+++ b/src/main/res/values-cs/strings.xml
@@ -26,8 +26,7 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
@@ -58,17 +57,6 @@
         <item>24 hodin</item>
         <item>Nikdy</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -78,15 +66,6 @@
         <item>25000 SMS</item>
         <item>Všechny nesynchronizované SMS</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 hodina</item>
         <item>3 hodiny</item>
@@ -95,16 +74,8 @@
         <item>24 hodin</item>
         <item>Nikdy</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
 
-	<string name="pref_push_on_receive">Oznámit SMS při přijetí</string>
+    <string name="pref_push_on_receive">Oznámit SMS při přijetí</string>
     <string name="pref_sync_wifi">Synchronizovat přes Wi-Fi</string>
     <string name="pref_sync_4g">Synchronizovat přes 4G</string>
     <string name="pref_sync_3g">Synchronizovat přes 3G</string>
@@ -126,11 +97,6 @@
     <string name="error_connection_failed">Připojení selhalo, ujistěte se, že máte správný server</string>
     <string name="error_http_connection_failed">Nelze provést připojení přes HTTP. Ujistěte se, že je webový server dostupný</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Ohodnoťit!</string>
     <string name="ma_title_add_account">Přidat účet</string>
diff --git a/src/main/res/values-de-rDE/strings.xml b/src/main/res/values-de-rDE/strings.xml
index e3cddee..d94f3b5 100644
--- a/src/main/res/values-de-rDE/strings.xml
+++ b/src/main/res/values-de-rDE/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Login Logo</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 Stunden</item>
         <item>Nie</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Alle SMS wurde noch nicht synchronisiert</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 Stunde</item>
         <item>3 Stunden</item>
@@ -105,51 +80,6 @@
         <item>24 Stunden</item>
         <item>Nie</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">SMS beim Empfang weiterleiten</string>
     <string name="pref_sync_wifi">Synchronisiere über WLAN</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Verbindung fehlgeschlagen, ist dies der richtige Server?</string>
     <string name="error_http_connection_failed">Kann keine HTTP-Verbindung aufbauen. Läuft der Webserver unter dieser Adresse?</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Bewerte uns!</string>
     <string name="ma_title_add_account">Account hinzufügen</string>
diff --git a/src/main/res/values-de/strings.xml b/src/main/res/values-de/strings.xml
index f90ffbb..09292c7 100644
--- a/src/main/res/values-de/strings.xml
+++ b/src/main/res/values-de/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Login Logo</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 Stunden</item>
         <item>Nie</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Alle SMS wurde noch nicht synchronisiert</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 Stunde</item>
         <item>3 Stunden</item>
@@ -105,51 +80,6 @@
         <item>24 Stunden</item>
         <item>Nie</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">SMS beim Empfang weiterleiten</string>
     <string name="pref_sync_wifi">Synchronisiere über WLAN</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Verbindung fehlgeschlagen, ist dies der richtige Server?</string>
     <string name="error_http_connection_failed">Kann keine HTTP-Verbindung aufbauen. Läuft der Webserver unter dieser Adresse?</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Bewerte uns!</string>
     <string name="ma_title_add_account">Account hinzufügen</string>
diff --git a/src/main/res/values-en/strings.xml b/src/main/res/values-en/strings.xml
index 9449cdc..f96af1e 100644
--- a/src/main/res/values-en/strings.xml
+++ b/src/main/res/values-en/strings.xml
@@ -28,25 +28,25 @@
 <resources>
     <!-- Translation version, reference for translators -->
 	<string name="translation_version">7</string>
-	
+
     <!-- Translations must begin there -->
     <!-- Preferences -->
     <string name="pref_title_sync">Fast Sync</string>
     <string name="pref_title_sync_frequency">Fast Sync frequency</string>
     <string name="pref_title_slow_sync">Secure Slow Sync</string>
     <string name="pref_title_slow_sync_frequency">Secure Slow Sync frequency</string>
-    
+
     <string name="action_settings">Settings</string>
     <string name="sync_now">Synchronize now</string>
     <string name="pref_category_sync">Synchronization</string>
 
-	<string name="title_global_pref_to_general_prefs">General preferences</string>
-	<string name="summary_global_pref_to_general_prefs">Sync options</string>
-	<string name="summary_notif_prefs">Notifications</string>
-	
+    <string name="title_global_pref_to_general_prefs">General preferences</string>
+    <string name="summary_global_pref_to_general_prefs">Sync options</string>
+    <string name="summary_notif_prefs">Notifications</string>
+
     <string name="pref_header_data_sync">Data &amp; sync</string>
 
-	<string name="title_activity_general_settings">General Settings</string>
+    <string name="title_activity_general_settings">General Settings</string>
 
     <string-array name="pref_sync_frequency_titles">
         <item>5 minutes</item>
@@ -59,18 +59,7 @@
         <item>24 hours</item>
         <item>Never</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-    
+
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 minute</item>
         <item>1 hour</item>
@@ -80,17 +69,7 @@
         <item>24 hours</item>
         <item>Never</item>
     </string-array>
-    
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>1</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-    
+
     <string name="pref_push_on_receive">Push SMS on reception</string>
     <string name="pref_sync_wifi">Synchronize in Wi-Fi</string>
     <string name="pref_sync_4g">Synchronize in 4G</string>
@@ -98,7 +77,7 @@
     <string name="pref_sync_gprs">Synchronize in 2.5G (GPRS)</string>
     <string name="pref_sync_2g">Synchronize in 2G</string>
     <string name="pref_sync_others">Synchronize in other modes</string>
-    
+
     <string name="title_activity_login">Sign in</string>
 
     <!-- Login -->
@@ -113,12 +92,7 @@
     <string name="error_invalid_server_address">Invalid server address</string>
     <string name="error_connection_failed">Connection failed, ensure this is the right server</string>
     <string name="error_http_connection_failed">Unable to perform a HTTP connection. Please ensure there is a web server</string>
-    
-    <string-array name="protocol_array">
-    	<item>https://</item>
-        <item>http://</item>
-    </string-array>
-    
+
     <!-- Main activity -->
     <string name="ma_title_rate_us">Rate us !</string>
     <string name="ma_title_add_account">Add an account</string>
@@ -129,7 +103,7 @@
     <string name="sync_title">Sync process</string>
     <string name="sync_inprogress">Sync in progress...</string>
     <string name="fatal_error">Fatal error ! </string>
-    
+
     <!-- Errors -->
     <string name="err_sync_get_smslist">Error #1: Invalid data received from server when getting previous messages</string>
     <string name="err_sync_craft_http_request">Error #2: Error while crafting HTTP request</string>
diff --git a/src/main/res/values-es/strings.xml b/src/main/res/values-es/strings.xml
index 3602053..8a70dfe 100644
--- a/src/main/res/values-es/strings.xml
+++ b/src/main/res/values-es/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">1</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Logo de inicio de sesión</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 horas</item>
         <item>Nunca</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>No se han sincronizado todos los SMS</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 hora</item>
         <item>3 horas</item>
@@ -105,51 +80,6 @@
         <item>24 horas</item>
         <item>Nunca</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Forzar SMS en recepción</string>
     <string name="pref_sync_wifi">Sincronizar en Wi-Fi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Imposible conectar al servidor. Por favor asegúrese que la dirección del servidor es correcta</string>
     <string name="error_http_connection_failed">Imposible establecer una conexión HTTP. Por favor asegúrese que el servidor HTTP esta ejecutándose</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">¡Califíquenos!</string>
     <string name="ma_title_add_account">Agregue una cuenta</string>
diff --git a/src/main/res/values-fr/strings.xml b/src/main/res/values-fr/strings.xml
index d1c5f51..1dcb264 100644
--- a/src/main/res/values-fr/strings.xml
+++ b/src/main/res/values-fr/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Logo de connexion</string>
 
     <string name="pref_lastmsgdate">date_du_dernier_message</string>
@@ -68,17 +63,6 @@
         <item>24 heures</item>
         <item>Jamais</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Tous les SMS non synchronisés</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 heure</item>
         <item>3 heures</item>
@@ -105,51 +80,6 @@
         <item>24 heures</item>
         <item>Jamais</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Pousser le SMS à la réception</string>
     <string name="pref_sync_wifi">Synchroniser en Wi-Fi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Echec de connexion, assurer vous qu\'il s\'agit du bon serveur</string>
     <string name="error_http_connection_failed">Impossible d\'effectuer la connexion HTTP. Assurez vous qu\'il s\'agit d\'un serveur HTTP</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Notez nous !</string>
     <string name="ma_title_add_account">Ajouter un compte</string>
diff --git a/src/main/res/values-it/strings.xml b/src/main/res/values-it/strings.xml
index 2a54931..c8c3766 100644
--- a/src/main/res/values-it/strings.xml
+++ b/src/main/res/values-it/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Logo di accesso</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -66,17 +61,6 @@
         <item>24 ore</item>
         <item>Mai</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -85,15 +69,6 @@
         <item>10000 SMS</item>
         <item>25000 SMS</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 ora</item>
         <item>3 ore</item>
@@ -102,51 +77,6 @@
         <item>24 ore</item>
         <item>Mai</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Invia SMS alla ricezione</string>
     <string name="pref_sync_wifi">Sincronizza con Wi-Fi</string>
@@ -170,11 +100,6 @@
     <string name="error_connection_failed">Connessione non riuscita, assicurati che il server sia corretto</string>
     <string name="error_http_connection_failed">Impossibile eseguire una connessione HTTP. Assicurati che ci sia un server web</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <string name="ma_title_add_account">Aggiungi un account</string>
     <string name="ma_title_welcome">Benvenuto</string>
     <string name="ma_title_remote_account">Account remoto</string>
diff --git a/src/main/res/values-nb-rNO/strings.xml b/src/main/res/values-nb-rNO/strings.xml
index 32aa465..8910b31 100644
--- a/src/main/res/values-nb-rNO/strings.xml
+++ b/src/main/res/values-nb-rNO/strings.xml
@@ -26,8 +26,7 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
@@ -64,17 +63,6 @@
         <item>24 timer</item>
         <item>Aldri</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1 000 SMS</item>
@@ -84,15 +72,6 @@
         <item>25 000 SMS</item>
         <item>Ingen SMS er synkronisert</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1 000</item>
-        <item>2 000</item>
-        <item>5 000</item>
-        <item>10 000</item>
-        <item>25 000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 time</item>
         <item>3 timer</item>
@@ -101,51 +80,6 @@
         <item>24 timer</item>
         <item>Aldri</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_sync_wifi">Synkroniser via Wifi</string>
     <string name="pref_sync_4g">Synkroniser via 4G</string>
@@ -166,10 +100,6 @@
     <string name="prompt_serverURI">Tjeneradresse</string>
     <string name="error_invalid_server_address">Ugyldig tjeneradresse</string>
     <string name="error_connection_failed">Forbindelse feilet, sjekk at dette er korrekt tjener</string>
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
 
     <string name="ma_title_add_account">Legg til en konto</string>
     <string name="ma_title_welcome">Velkommen</string>
diff --git a/src/main/res/values-nl/strings.xml b/src/main/res/values-nl/strings.xml
index a0d7277..abbf02c 100644
--- a/src/main/res/values-nl/strings.xml
+++ b/src/main/res/values-nl/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Inlog logo</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 uur</item>
         <item>Nooit</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Niet elke SMS gesynchroniseerd</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 uur</item>
         <item>3 uur</item>
@@ -105,51 +80,6 @@
         <item>24 uur</item>
         <item>Nooit</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Push SMS bij ontvangst</string>
     <string name="pref_sync_wifi">Synchroniseren in wifi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Verbinding mislukt, verifieer dat dit de juiste server is</string>
     <string name="error_http_connection_failed">Kon geen HTTP verbinding maken. Verifieer dat er een webserver is</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Beoordeel ons!</string>
     <string name="ma_title_add_account">Toevoegen account</string>
diff --git a/src/main/res/values-pl/strings.xml b/src/main/res/values-pl/strings.xml
index 88df179..3538cd5 100644
--- a/src/main/res/values-pl/strings.xml
+++ b/src/main/res/values-pl/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Logo loginu</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 godziny</item>
         <item>Nigdy</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMSów</item>
         <item>1000 SMSów</item>
@@ -88,15 +72,6 @@
         <item>25000 SMSów</item>
         <item>Żaden SMS się nie zsynchronizował</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 godzina</item>
         <item>3 godziny</item>
@@ -105,51 +80,6 @@
         <item>24 godziny</item>
         <item>Nigdy</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Push SMS po przyjęciu</string>
     <string name="pref_sync_wifi">Synchronizuj przez Wi-Fi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Połączenie nie udało się, upewnij się, że to właściwy serwer</string>
     <string name="error_http_connection_failed">Nie można zestawić połączenia HTTP. Proszę upewnić się, że jest tam serwer webowy</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Oceń nas!</string>
     <string name="ma_title_add_account">Dodaj konto</string>
diff --git a/src/main/res/values-pt-rBR/strings.xml b/src/main/res/values-pt-rBR/strings.xml
index 21b16b7..4ef396c 100644
--- a/src/main/res/values-pt-rBR/strings.xml
+++ b/src/main/res/values-pt-rBR/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Logo do Login</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 horas</item>
         <item>Nunca</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Cada SMS não sincronizado</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 hora</item>
         <item>3 horas</item>
@@ -105,51 +80,6 @@
         <item>24 horas</item>
         <item>Nunca</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Empurrar SMS na recepção</string>
     <string name="pref_sync_wifi">Sincronizar em Wi-Fi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">A conexão falhou, certifique-se de que este é o servidor certo</string>
     <string name="error_http_connection_failed">Não é possível executar uma conexão HTTP. Certifique-se de que existe um servidor web</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Nos classifique!</string>
     <string name="ma_title_add_account">Adicionar uma conta</string>
diff --git a/src/main/res/values-ru/strings.xml b/src/main/res/values-ru/strings.xml
index 57db625..37bd2a8 100644
--- a/src/main/res/values-ru/strings.xml
+++ b/src/main/res/values-ru/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Логотип логина</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 часа</item>
         <item>Никогда</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Every SMS not synced</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 минута</item>
         <item>1 час</item>
@@ -105,51 +80,6 @@
         <item>12 часов</item>
         <item>24 часа</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Использовать Push</string>
     <string name="pref_sync_wifi">Синхронизировать по Wi-Fi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Не удалось установить соединение, убедитесь, что это верный сервер</string>
     <string name="error_http_connection_failed">Невозможно выполнить HTTP подключение. Пожалуйста, убедитесь, что это веб-сервер</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Оцените нас !</string>
     <string name="ma_title_add_account">Добавить аккаунт</string>
diff --git a/src/main/res/values-sq/strings.xml b/src/main/res/values-sq/strings.xml
index 908eeb5..c20d821 100644
--- a/src/main/res/values-sq/strings.xml
+++ b/src/main/res/values-sq/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Shenja e hyrjes</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 orë</item>
         <item>Kurrë</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Nuk sinkronizohet çdo SMS </item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 orë</item>
         <item>3 orë</item>
@@ -105,51 +80,6 @@
         <item>24 orë</item>
         <item>Kurrë</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Shty SMS-t në pritje</string>
     <string name="pref_sync_wifi">Sinkronizuar në Wi-Fi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Lidhja dështoi, sigurohuni që është serveri i duhur</string>
     <string name="error_http_connection_failed">E pamundur të kryhet një lidhje HTTP. Ju lutemi sigurohuni që nuk është një web server</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Na vleresoni!</string>
     <string name="ma_title_add_account">Shtoni një llogari</string>
diff --git a/src/main/res/values-sr/strings.xml b/src/main/res/values-sr/strings.xml
index f856031..0499939 100644
--- a/src/main/res/values-sr/strings.xml
+++ b/src/main/res/values-sr/strings.xml
@@ -67,7 +67,7 @@
         <item>24 сата</item>
         <item>Никад</item>
     </string-array>
-    
+
     <string name="pref_sync_wifi">Синх. преко бежичног</string>
     <string name="pref_sync_4g">Синх. преко 4G</string>
     <string name="pref_sync_3g">Синх. преко 3G</string>
diff --git a/src/main/res/values-sv/strings.xml b/src/main/res/values-sv/strings.xml
index ea4d24e..55fec1f 100644
--- a/src/main/res/values-sv/strings.xml
+++ b/src/main/res/values-sv/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+    xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">8</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Login logo</string>
 
     <string name="pref_lastmsgdate">last_message_date</string>
@@ -68,17 +63,6 @@
         <item>24 timmar</item>
         <item>Aldrig</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 SMS</item>
         <item>1000 SMS</item>
@@ -88,15 +72,6 @@
         <item>25000 SMS</item>
         <item>Alla SMS synkroniseras inte</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 timme</item>
         <item>3 timmar</item>
@@ -105,51 +80,6 @@
         <item>24 timmar</item>
         <item>Aldrig</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">Synkronisera med Push vid mottagande</string>
     <string name="pref_sync_wifi">Synkronisera med Wi-Fi</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">Anslutning misslyckades, vänligen säkerställ att detta är rätt server</string>
     <string name="error_http_connection_failed">Det gick inte att genomföra en HTTP-anslutning. Vänligen säkerställ att det finns en web-server</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">Skriv en recension!</string>
     <string name="ma_title_add_account">Lägg till ett konto</string>
diff --git a/src/main/res/values-zh-rCN/strings.xml b/src/main/res/values-zh-rCN/strings.xml
index 074c0da..4469c2c 100644
--- a/src/main/res/values-zh-rCN/strings.xml
+++ b/src/main/res/values-zh-rCN/strings.xml
@@ -26,18 +26,13 @@
  */
 -->
 <resources
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:ignore="MissingTranslation">
+   xmlns:tools="http://schemas.android.com/tools">
 
     <!-- Translation version, reference for translators -->
     <string name="translation_version">7</string>
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud 信息</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">登录Logo</string>
 
     <string name="pref_lastmsgdate">上一条信息的日期</string>
@@ -68,17 +63,6 @@
         <item>24 小时</item>
         <item>从不</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
-        <item>5</item>
-        <item>15</item>
-        <item>30</item>
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_sync_bulk_max_messages_titles">
         <item>100 条短信</item>
         <item>1000 条短信</item>
@@ -88,15 +72,6 @@
         <item>25000 条短信</item>
         <item>所有未同步的短信</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
-        <item>100</item>
-        <item>1000</item>
-        <item>2000</item>
-        <item>5000</item>
-        <item>10000</item>
-        <item>25000</item>
-        <item>-1</item>
-    </string-array>
     <string-array name="pref_slow_sync_frequency_titles">
         <item>1 小时</item>
         <item>3 小时</item>
@@ -105,51 +80,6 @@
         <item>24 小时</item>
         <item>从不</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
-        <item>60</item>
-        <item>180</item>
-        <item>360</item>
-        <item>720</item>
-        <item>1440</item>
-        <item>-1</item>
-    </string-array>
-
-    <string-array name="pref_minimum_sync_chars_titles">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
-    <string-array name="pref_minimum_sync_chars">
-        <item>0</item>
-        <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
-        <item>5</item>
-        <item>6</item>
-        <item>7</item>
-        <item>8</item>
-        <item>9</item>
-        <item>10</item>
-        <item>11</item>
-        <item>12</item>
-        <item>13</item>
-        <item>14</item>
-        <item>15</item>
-    </string-array>
 
     <string name="pref_push_on_receive">收到短信时便推送</string>
     <string name="pref_sync_wifi">使用 WiFi 时同步</string>
@@ -173,11 +103,6 @@
     <string name="error_connection_failed">连接失败，请确认填写了正确的服务器</string>
     <string name="error_http_connection_failed">无法建立 HTTP 连接，请确认网页服务器存在</string>
 
-    <string-array name="protocol_array">
-        <item>https://</item>
-        <item>http://</item>
-    </string-array>
-
     <!-- Main activity -->
     <string name="ma_title_rate_us">为我们评分！</string>
     <string name="ma_title_add_account">添加账户</string>
diff --git a/src/main/res/values/google_playstore_strings.xml b/src/main/res/values/google_playstore_strings.xml
index b4eab63..1f61856 100644
--- a/src/main/res/values/google_playstore_strings.xml
+++ b/src/main/res/values/google_playstore_strings.xml
@@ -28,7 +28,7 @@
 <resources>
     <!-- Translation version, reference for translators -->
 	<string name="gp_translation_version">3</string>
-	
+
 	<!-- Translations must begin here -->
     <string name="gp_short_description">Nextcloud SMS synchronize your local SMS on your Nextcloud instance</string>
     <string name="gp_description">
@@ -38,4 +38,4 @@ Sending SMS from ownCloud instance will coming in a future release.
 
 Application is fully compatible from Android 4.0 to 6.0
 	</string>
-</resources>
\ No newline at end of file
+</resources>
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index 9999310..6b90d12 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -34,10 +34,10 @@
 
     <!-- System strings, do not translate -->
     <string name="app_name">Nextcloud SMS</string>
-    <string name="account_type">fr.unix_experience.owncloud_sms</string>
-    <string name="account_authority">fr.unix_experience.owncloud_sms.datasync.provider</string>
-    <string name="slowsync_account_authority">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
-    <string name="target_package">fr.unix_experience.owncloud_sms</string>
+    <string name="account_type" translatable="false">fr.unix_experience.owncloud_sms</string>
+    <string name="account_authority" translatable="false">fr.unix_experience.owncloud_sms.datasync.provider</string>
+    <string name="slowsync_account_authority" translatable="false">fr.unix_experience.owncloud_sms.datasync.slowsync_provider</string>
+    <string name="target_package" translatable="false">fr.unix_experience.owncloud_sms</string>
     <string name="login_logo">Login logo</string>
 
     <!-- System strings: preferences -->
@@ -70,7 +70,7 @@
         <item>24 hours</item>
         <item>Never</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
+    <string-array name="pref_sync_frequency_values" translatable="false">
         <item>5</item>
         <item>15</item>
         <item>30</item>
@@ -90,7 +90,7 @@
         <item>25000 SMS</item>
         <item>Every SMS not synced</item>
     </string-array>
-    <string-array name="pref_sync_bulk_max_messages">
+    <string-array name="pref_sync_bulk_max_messages" translatable="false">
         <item>100</item>
         <item>1000</item>
         <item>2000</item>
@@ -107,7 +107,7 @@
         <item>24 hours</item>
         <item>Never</item>
     </string-array>
-    <string-array name="pref_slow_sync_frequency_values">
+    <string-array name="pref_slow_sync_frequency_values" translatable="false">
         <item>60</item>
         <item>180</item>
         <item>360</item>
@@ -116,7 +116,7 @@
         <item>-1</item>
     </string-array>
 
-    <string-array name="pref_minimum_sync_chars_titles">
+    <string-array name="pref_minimum_sync_chars_titles" translatable="false">
         <item>0</item>
         <item>1</item>
         <item>2</item>
@@ -134,7 +134,7 @@
         <item>14</item>
         <item>15</item>
     </string-array>
-    <string-array name="pref_minimum_sync_chars">
+    <string-array name="pref_minimum_sync_chars" translatable="false">
         <item>0</item>
         <item>1</item>
         <item>2</item>
@@ -175,7 +175,7 @@
     <string name="error_connection_failed">Connection failed, ensure this is the right server</string>
     <string name="error_http_connection_failed">Unable to perform a HTTP connection. Please ensure there is a web server</string>
 
-    <string-array name="protocol_array">
+    <string-array name="protocol_array" translatable="false">
         <item>https://</item>
         <item>http://</item>
     </string-array>