diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e5efabc..b2e31d7 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -7,8 +7,8 @@
     <!-- From Android 3.0 to 5.0 -->
     <uses-sdk
         android:maxSdkVersion="21"
-        android:minSdkVersion="11"
-        android:targetSdkVersion="19" />
+        android:minSdkVersion="14"
+        android:targetSdkVersion="21" />
 
     <uses-permission android:name="android.permission.READ_SMS" />
     <!-- For SMS Broadcaster -->
@@ -33,7 +33,7 @@
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme" >
+        android:theme="@style/OcSmsTheme" >
 
         <!-- Related to periodic sync -->
         <service
@@ -111,7 +111,7 @@
             android:label="@string/title_activity_general_settings" >
         </activity>
         <activity
-            android:name="fr.unix_experience.owncloud_sms.activities.MainActivity"
+            android:name=".activities.MainActivity"
             android:label="@string/app_name" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -119,6 +119,10 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+            android:name=".MainActivity2"
+            android:label="@string/title_activity_main_activity2" >
+        </activity>
     </application>
 
 </manifest>
diff --git a/project.properties b/project.properties
index c4a90bb..c452621 100644
--- a/project.properties
+++ b/project.properties
@@ -11,6 +11,5 @@
 #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 # Project target.
-target=android-17
-android.library.reference.1=../appcompat_v7
-android.library.reference.2=../Owncloud-Android-Library
+target=android-21
+android.library.reference.1=../Owncloud-Android-Library
diff --git a/res/menu/main.xml b/res/menu/main.xml
deleted file mode 100644
index 570ca32..0000000
--- a/res/menu/main.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:context="fr.unix_experience.owncloud_sms.MainActivity" >
-
-    <item
-        android:id="@+id/action_settings"
-        android:orderInCategory="100"
-        android:title="@string/action_settings"
-        app:showAsAction="never"/>
-
-</menu>
diff --git a/res/values-v11/styles.xml b/res/values-v11/styles.xml
deleted file mode 100644
index a4a95bc..0000000
--- a/res/values-v11/styles.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<resources>
-
-    <!--
-        Base application theme for API 11+. This theme completely replaces
-        AppBaseTheme from res/values/styles.xml on API 11+ devices.
-    -->
-    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
-        <!-- API 11 theme customizations can go here. -->
-    </style>
-
-</resources>
diff --git a/res/values-v14/styles.xml b/res/values-v14/styles.xml
index 664f4f1..637bd54 100644
--- a/res/values-v14/styles.xml
+++ b/res/values-v14/styles.xml
@@ -5,8 +5,13 @@
         AppBaseTheme from BOTH res/values/styles.xml and
         res/values-v11/styles.xml on API 14+ devices.
     -->
-    <style name="AppBaseTheme" parent="Theme.AppCompat.Light.DarkActionBar">
-        <!-- API 14 theme customizations can go here. -->
+    <style name="OcSmsTheme" parent="@android:style/Theme.Holo.Light.DarkActionBar">
+        <item name="android:actionBarStyle">@style/OcSmsActionBar</item>
+	</style>
+	
+    <style name="OcSmsActionBar"
+           parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
+        <item name="android:background">#56a6cf</item>
     </style>
 
 </resources>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index ace3169..3948c72 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -115,7 +115,7 @@
         <item>https://</item>
         <item>http://</item>
     </string-array>
-    
+
     <!-- Main activity -->
     <string name="ma_button_rate_us">Rate us !</string>
     <string name="ma_button_thanksto">Thanks to</string>
@@ -154,5 +154,6 @@
     <string name="title_section2">Section 2</string>
     <string name="title_section3">Section 3</string>
     <string name="hello_world">Hello world!</string>
+    <string name="title_activity_main_activity2">MainActivity2</string>
 
 </resources>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 845fb57..07c6643 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -3,8 +3,8 @@
     <!--
         Base application theme, dependent on API level. This theme is replaced
         by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
-    -->
-    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
+    -->   
+    <style name="AppBaseTheme" parent="@android:style/Theme.Holo.Light">
         <!--
             Theme customizations available in newer API levels can go in
             res/values-vXX/styles.xml, while customizations related to
@@ -16,5 +16,5 @@
     <style name="AppTheme" parent="AppBaseTheme">
         <!-- All customizations that are NOT specific to a particular API-level can go here. -->
     </style>
-
+    
 </resources>
diff --git a/res/xml/pref_data_sync.xml b/res/xml/pref_data_sync.xml
index 44080de..1ec4d80 100644
--- a/res/xml/pref_data_sync.xml
+++ b/res/xml/pref_data_sync.xml
@@ -9,13 +9,5 @@
         android:negativeButtonText="@null"
         android:positiveButtonText="@null"
         android:title="@string/pref_title_sync_frequency" />
-    <!--  <ListPreference
-        android:defaultValue="60"
-        android:entries="@array/pref_slow_sync_frequency_titles"
-        android:entryValues="@array/pref_slow_sync_frequency_values"
-        android:key="slow_sync_frequency"
-        android:negativeButtonText="@null"
-        android:positiveButtonText="@null"
-        android:title="@string/pref_title_slow_sync_frequency" /> -->
 	</PreferenceCategory>
 </PreferenceScreen>
diff --git a/src/fr/unix_experience/owncloud_sms/activities/MainActivity.java b/src/fr/unix_experience/owncloud_sms/activities/MainActivity.java
index 55973f1..fdb86bf 100644
--- a/src/fr/unix_experience/owncloud_sms/activities/MainActivity.java
+++ b/src/fr/unix_experience/owncloud_sms/activities/MainActivity.java
@@ -29,25 +29,21 @@ import java.util.List;
 import java.util.Vector;
 
 import fr.unix_experience.owncloud_sms.R;
-import fr.unix_experience.owncloud_sms.R.id;
-import fr.unix_experience.owncloud_sms.R.layout;
-import fr.unix_experience.owncloud_sms.R.menu;
-import android.support.v7.app.ActionBarActivity;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentPagerAdapter;
+import android.app.Activity;
+import android.app.Fragment;
+import android.app.FragmentManager;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.Settings;
+import android.support.v13.app.FragmentPagerAdapter;
+import android.support.v4.view.PagerAdapter;
 import android.support.v4.view.ViewPager;
 import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 
-public class MainActivity extends ActionBarActivity {
+public class MainActivity extends Activity {
 
 	/**
 	 * The {@link android.support.v4.view.PagerAdapter} that will provide
@@ -56,7 +52,7 @@ public class MainActivity extends ActionBarActivity {
 	 * becomes too memory intensive, it may be best to switch to a
 	 * {@link android.support.v4.app.FragmentStatePagerAdapter}.
 	 */
-	MainPagerAdapter mPagerAdapter;
+	PagerAdapter mPagerAdapter;
 
 	/**
 	 * The {@link ViewPager} that will host the section contents.
@@ -81,32 +77,13 @@ public class MainActivity extends ActionBarActivity {
 		fragments.add(Fragment.instantiate(this,SecondTestFragment.class.getName()));
 		fragments.add(Fragment.instantiate(this,ThanksAndRateFragment.class.getName()));
 		
-		mPagerAdapter = new MainPagerAdapter(getSupportFragmentManager(), fragments);
+		mPagerAdapter = new MainPagerAdapter(getFragmentManager(), fragments);
 
 		// Set up the ViewPager with the sections adapter.
 		mViewPager = (ViewPager) findViewById(R.id.pager);
 		mViewPager.setAdapter(mPagerAdapter);
 	}
 
-	@Override
-	public boolean onCreateOptionsMenu(Menu menu) {
-		// Inflate the menu; this adds items to the action bar if it is present.
-		getMenuInflater().inflate(R.menu.main, menu);
-		return true;
-	}
-
-	@Override
-	public boolean onOptionsItemSelected(MenuItem item) {
-		// Handle action bar item clicks here. The action bar will
-		// automatically handle clicks on the Home/Up button, so long
-		// as you specify a parent activity in AndroidManifest.xml.
-		int id = item.getItemId();
-		if (id == R.id.action_settings) {
-			return true;
-		}
-		return super.onOptionsItemSelected(item);
-	}
-
 	/**
 	 * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
 	 * one of the sections/tabs/pages.
@@ -115,12 +92,11 @@ public class MainActivity extends ActionBarActivity {
 
 		private final List<Fragment> mFragments;
 		
-		public MainPagerAdapter(FragmentManager fm, List<Fragment> fragments) {
-			super(fm);
+		public MainPagerAdapter(FragmentManager fragmentManager, List<Fragment> fragments) {
+			super(fragmentManager);
 			mFragments = fragments;
 		}
 
-		@Override
 		public Fragment getItem(int position) {
 			// getItem is called to instantiate the fragment for the given page.
 			// Return a PlaceholderFragment (defined as a static inner class