diff --git a/src/main/res/values-sc/strings.xml b/src/main/res/values-sc/strings.xml
index 398745d..db10af0 100644
--- a/src/main/res/values-sc/strings.xml
+++ b/src/main/res/values-sc/strings.xml
@@ -93,6 +93,10 @@
     <string name="prompt_serverURI">Indiritzu serbidore</string>
     <string name="error_invalid_server_address">Indiritzu serbidore non vàlidu</string>
     <string name="error_connection_failed">Connessione faddida, assegura·ti chi siat su serbidore giustu</string>
+    <string name="error_http_connection_failed">Impossìbile a istabilire una connessione HTTP. Assegura·ti chi ddoe siat unu serbidore web</string>
+
+    <!-- Main activity -->
+    <string name="ma_title_rate_us">Vàluta·nos!</string>
     <string name="ma_title_add_account">Agiunghe unu contu</string>
     <string name="ma_title_welcome">Ti donamus sa benebènnida</string>
     <string name="ma_content_welcome">Ti donamus sa benebènnida in s\'aplicatzione Nextcloud SMS. Custa aplicatzione ti faghet sincronizare is SMS in su Nextcloud tuo impreende s\'aplicatzione SMS.</string>
@@ -109,14 +113,52 @@
     <string name="sync_inprogress">Sincronizatzione in cursu ...</string>
     <string name="fatal_error">Errore fatale!</string>
 
+    <!-- Errors -->
+    <string name="err_sync_get_smslist">Errore #1: Datos non vàlidos retzidos dae su serbidore in sa retzidura de messàgios pretzedentes</string>
+    <string name="err_sync_craft_http_request">Errore #2: Errore in sa creatzione de rechesta de HTTP</string>
+    <string name="err_sync_create_json_null_smslist">Errore #5: Lista NULL SMS</string>
+    <string name="err_sync_auth_failed">Errore #8: Autenticatzione faddida</string>
+    <string name="err_sync_http_request_connect">Errore #11: Impossìbile a istabilire una connessione cun Nextcloud</string>
+    <string name="err_sync_http_request_httpexception">Errore #12: Impossìbile a istabilire una connessione cun Nextcloud</string>
+    <string name="err_sync_http_request_ioexception">Errore #13: Impossìbile a istabilire una connessione cun Nextcloud</string>
+    <string name="err_sync_http_request_resp">Errore #14: Impossìbile a analizare sa risposta de su serbidore</string>
+    <string name="err_sync_http_request_parse_resp">Errore #15: Impossìbile a analizare sa risposta de su serbidore</string>
+    <string name="err_sync_no_connection_available">Errore #16: Peruna connessione datos a disponimentu</string>
+    <string name="err_sync_account_unparsable">Errore #17: contu difetosu. Torra·ddu a cunfigurare</string>
+    <string name="err_sync_ocsms_not_installed_or_oc_upgrade_required">Errore #18: s\'aplicatzione SMS Nextcloud no est installada o Nextcloud est abetende un\'agiornamentu</string>
+    <string name="err_fetch_phonelist">Lista de telèfonu retzida dae su serbidore non vàlida.</string>
     <string name="err_proto_v2">Su serbidore non suportat custa funtzione. Assegura·ti chi sa versione de su serbidore siat a su mancu 1.6.</string>
     <string name="contactinfos_title">Informatziones de cuntatu</string>
+    <string name="subtitle_contact_phones">- Telèfonos de cuntatu</string>
     <string name="pref_title_bulk_messages">Màssimu de messàgiu de imbiare pro sincronizatzione</string>
     <string name="contactinfos_list">Lista de cuntatos</string>
+    <string name="function_not_available">Custa funtzione no est ancora a disponimentu.</string>
+
+    <string name="ui_notification_title_template">SMS Nextcloud: %1$s</string>
+    <string name="communicate">Comùnica</string>
+    <string name="title_activity_main2">Main2Activity</string>
+
+    <string name="navigation_drawer_open">Aberi su calàsciu de navigatzione</string>
+    <string name="navigation_drawer_close">Serra su calàsciu de navigatzione</string>
     <string name="ma_title_my_accounts">Is contos mios</string>
+    <string name="ma_content_swipeaction">Iscurre dae manca a dereta pro atzèdere a su menù de atzione.</string>
     <string name="cancel">Cantzella</string>
     <string name="understood">Cumprèndidu</string>
+    <string name="notif_permission_required">Permissos rechèdidos</string>
+    <string name="notif_permission_required_content">Mancant permissos pro esecutare su protzessu de sincronizatzione. Assenta sa chistione in cunfiguratziones de s\'aplicatzione.</string>
+    <string name="please_fix_it">Assenta·dda.</string>
+    <string name="err_cannot_read_contacts">Non podimus lèghere is cuntatos tuos.</string>
+    <string name="err_cannot_read_sms">Non podimus lèghere s\'SMS tuo.</string>
+    <string name="action_appinfo_perms">Informatziones de s\'aplicatzione e permissos</string>
+    <string name="restore_all_messages">Riprìstina totu is messàgios</string>
     <string name="account_actions">Atziones de su contu</string>
+    <string name="nothing_to_sync">Non ddoe at nudda de sincronizare.</string>
+    <string name="launch_restore">Riprìstina s\'SMS miu</string>
+    <string name="fix_permissions">Assenta permissos</string>
+    <string name="err_kitkat_required">Est rechèdidu Android 4.4 o prus reghente pro impreare custa funtzione.</string>
+    <string name="restore_finished">Su riprìstinu de SMS immoe est acabbadu.</string>
+    <string name="x_messages_restored">messàgios ripristinados&#8230;</string>
+    <string name="err_no_connection">Peruna connessione a disponimentu, assegura·ti chi tenes una connessione datos vàlida.</string>
     <string name="yes_confirm">Eja</string>
     <string name="no_confirm">No</string>
     <string name="pref_show_sync_notifications">Mustra notìficas de sincronizatzione</string>
diff --git a/src/main/res/values-zh-rHK/strings.xml b/src/main/res/values-zh-rHK/strings.xml
index a779872..1da803e 100644
--- a/src/main/res/values-zh-rHK/strings.xml
+++ b/src/main/res/values-zh-rHK/strings.xml
@@ -144,8 +144,6 @@
 
     <string name="ui_notification_title_template">Nextcloud SMS：%1$s</string>
     <string name="communicate">通訊</string>
-    <string name="title_activity_main2">Main2Activity</string>
-
     <string name="navigation_drawer_open">開啟導覽列</string>
     <string name="navigation_drawer_close">關閉導覽列</string>
     <string name="ma_title_my_accounts">我的帳戶</string>