diff --git a/.travis.yml b/.travis.yml
index a5e258611..c533236f5 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -44,7 +44,7 @@ install:
 - test -z "$encrypted_c726d225a9d9_key" || mv debug.keystore ~/.android/debug.keystore
 before_script: 
 script:
-- git fetch --depth 50
+- git fetch --depth 250
 - cd shell/android-studio
 - export NUMBER_OF_PROCESSORS=2
 - sudo chmod 755 travis-build.sh
diff --git a/core/hw/aica/aica_if.cpp b/core/hw/aica/aica_if.cpp
index c92bce9b8..3bf48ae49 100644
--- a/core/hw/aica/aica_if.cpp
+++ b/core/hw/aica/aica_if.cpp
@@ -246,12 +246,12 @@ void Write_SB_ADST(u32 addr, u32 data)
 			SB_ADSTAR+=len;
 			SB_ADSTAG+=len;
 			total_bytes+=len;
-			SB_ADST    = settings.aica.InterruptHack ? 1 : 0x00000000;//dma done
+			SB_ADST    = settings.aica.DelayInterrupt ? 1 : 0x00000000;//dma done
 			SB_ADLEN   = 0x00000000;
  	 
 			aica_pending_dma = ((total_bytes * 200000000) / 65536) + 1;
  	 
-			if (!settings.aica.InterruptHack)
+			if (!settings.aica.DelayInterrupt)
 				asic_RaiseInterruptWait(holly_SPU_DMA);
 		}
 	}
@@ -334,4 +334,4 @@ void aica_sb_Reset(bool Manual)
 
 void aica_sb_Term()
 {
-}
\ No newline at end of file
+}
diff --git a/core/hw/sh4/interpr/sh4_interpreter.cpp b/core/hw/sh4/interpr/sh4_interpreter.cpp
index 91c100159..ab47385be 100644
--- a/core/hw/sh4/interpr/sh4_interpreter.cpp
+++ b/core/hw/sh4/interpr/sh4_interpreter.cpp
@@ -210,7 +210,7 @@ int AicaUpdate(int tag, int c, int j)
 		//aica_sample_cycles-=AICA_SAMPLE_CYCLES;
 	}
 
-   if (settings.aica.InterruptHack)
+   if (settings.aica.DelayInterrupt)
       aica_periodical(3584);
 
 	return AICA_TICK;
diff --git a/core/nullDC.cpp b/core/nullDC.cpp
index db05e160d..7fdc28116 100755
--- a/core/nullDC.cpp
+++ b/core/nullDC.cpp
@@ -298,7 +298,7 @@ void LoadSettings()
 	settings.aica.LimitFPS			= cfgLoadInt("config", "aica.LimitFPS", 1);
 	settings.aica.NoBatch			= cfgLoadInt("config", "aica.NoBatch", 0);
     settings.aica.NoSound			= cfgLoadInt("config", "aica.NoSound", 0);
-	settings.aica.InterruptHack		= cfgLoadInt("config", "aica.InterruptHack", 0);
+	settings.aica.DelayInterrupt	= cfgLoadInt("config", "aica.DelayInterrupt", 0);
 	settings.rend.UseMipmaps		= cfgLoadInt("config", "rend.UseMipmaps", 1);
 	settings.rend.WideScreen		= cfgLoadInt("config", "rend.WideScreen", 0);
 	settings.rend.ModifierVolumes	= cfgLoadInt("config", "rend.ModifierVolumes", 1);
@@ -358,7 +358,7 @@ void LoadCustom()
 	settings.dynarec.idleskip		= cfgGameInt(reios_id,"Dynarec.idleskip", settings.dynarec.idleskip ? 1 : 0) != 0;
 	settings.dynarec.unstable_opt	= cfgGameInt(reios_id,"Dynarec.unstable-opt", settings.dynarec.unstable_opt);
 	settings.dynarec.safemode		= cfgGameInt(reios_id,"Dynarec.safemode", settings.dynarec.safemode);
-	settings.aica.InterruptHack		= cfgLoadInt(reios_id,"aica.InterruptHack", settings.aica.InterruptHack);
+	settings.aica.DelayInterrupt	= cfgLoadInt(reios_id,"aica.DelayInterrupt", settings.aica.DelayInterrupt);
 	settings.rend.ModifierVolumes	= cfgGameInt(reios_id,"rend.ModifierVolumes", settings.rend.ModifierVolumes);
 	settings.rend.Clipping			= cfgGameInt(reios_id,"rend.Clipping", settings.rend.Clipping);
 
diff --git a/core/types.h b/core/types.h
index 6e7a4a1cf..0dd5865ec 100644
--- a/core/types.h
+++ b/core/types.h
@@ -653,7 +653,7 @@ struct settings_t
 		u32 DSPEnabled;		//0 -> no, 1 -> yes
 		u32 NoBatch;
 		u32 NoSound;        //0 ->sound, 1 -> no sound
-		u32 InterruptHack;
+		u32 DelayInterrupt;
 	} aica;
 
 #if USE_OMX
diff --git a/shell/android-studio/reicast/src/main/AndroidManifest.xml b/shell/android-studio/reicast/src/main/AndroidManifest.xml
index 82f017e6d..7d921048c 100644
--- a/shell/android-studio/reicast/src/main/AndroidManifest.xml
+++ b/shell/android-studio/reicast/src/main/AndroidManifest.xml
@@ -16,7 +16,6 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.BLUETOOTH" />
-    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_SERVICE" />
 
     <uses-feature
         android:glEsVersion="0x00020000"
@@ -45,6 +44,8 @@
         android:hardwareAccelerated="true"
         android:isGame="true">
 
+        <meta-data android:name="android.max_aspect" android:value="2.1" />
+
         <activity
             android:name=".MainActivity"
             android:configChanges="orientation|navigation|screenSize|screenLayout|uiMode|keyboard|keyboardHidden"
diff --git a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/Emulator.java b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/Emulator.java
index e72146144..8dce5f646 100644
--- a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/Emulator.java
+++ b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/Emulator.java
@@ -19,7 +19,7 @@ public class Emulator extends Application {
     public static final String pref_broadcast = "dc_broadcast";
     public static final String pref_limitfps = "limit_fps";
     public static final String pref_nosound = "sound_disabled";
-    public static final String pref_interrupt = "interrupt_hack";
+    public static final String pref_interrupt = "delay_interrupt";
     public static final String pref_mipmaps = "use_mipmaps";
     public static final String pref_widescreen = "stretch_view";
     public static final String pref_frameskip = "frame_skip";
@@ -94,7 +94,7 @@ public class Emulator extends Application {
         JNIdc.limitfps(Emulator.limitfps ? 1 : 0);
         JNIdc.nobatch(Emulator.nobatch ? 1 : 0);
         JNIdc.nosound(Emulator.nosound ? 1 : 0);
-        JNIdc.interrupthack(Emulator.interrupt ? 1 : 0);
+        JNIdc.delayinterrupt(Emulator.interrupt ? 1 : 0);
         JNIdc.mipmaps(Emulator.mipmaps ? 1 : 0);
         JNIdc.widescreen(Emulator.widescreen ? 1 : 0);
         JNIdc.subdivide(Emulator.subdivide ? 1 : 0);
@@ -113,7 +113,7 @@ public class Emulator extends Application {
         JNIdc.dynarec(mPrefs.getBoolean(pref_dynarecopt, dynarecopt) ? 1 : 0);
         JNIdc.unstable(mPrefs.getBoolean(pref_unstable, unstableopt) ? 1 : 0);
         JNIdc.safemode(mPrefs.getBoolean(pref_dynsafemode, dynsafemode) ? 1 : 0);
-        JNIdc.interrupthack(mPrefs.getBoolean(pref_interrupt, interrupt) ? 1 : 0);
+        JNIdc.delayinterrupt(mPrefs.getBoolean(pref_interrupt, interrupt) ? 1 : 0);
         JNIdc.frameskip(mPrefs.getInt(pref_frameskip, frameskip));
         JNIdc.pvrrender(mPrefs.getBoolean(pref_pvrrender, pvrrender) ? 1 : 0);
         JNIdc.syncedrender(mPrefs.getBoolean(pref_syncedrender, syncedrender) ? 1 : 0);
diff --git a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/MainActivity.java b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/MainActivity.java
index 477dafd57..e01f48048 100644
--- a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/MainActivity.java
+++ b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/MainActivity.java
@@ -40,7 +40,6 @@ import com.reicast.emulator.debug.GenerateLogs;
 import com.reicast.emulator.emu.JNIdc;
 import com.reicast.emulator.periph.Gamepad;
 
-import java.io.File;
 import java.lang.Thread.UncaughtExceptionHandler;
 import java.util.List;
 
@@ -215,29 +214,10 @@ public class MainActivity extends AppCompatActivity implements
 		builder.show();
 	}
 
-	public static boolean isBiosExisting(String home_directory) {
-		return new File (home_directory, "data/dc_boot.bin").exists();
-	}
-
-	public static boolean isFlashExisting(String home_directory) {
-		return new File (home_directory, "data/dc_flash.bin").exists();
-	}
-
 	public void onGameSelected(Uri uri) {
 		String home_directory = mPrefs.getString(Config.pref_home,
 				Environment.getExternalStorageDirectory().getAbsolutePath());
 
-		if (!mPrefs.getBoolean(Emulator.pref_usereios, false)) {
-			if (!isBiosExisting(home_directory)) {
-				launchBIOSdetection();
-				return;
-			}
-			if (!isFlashExisting(home_directory)) {
-				launchBIOSdetection();
-				return;
-			}
-		}
-
 		JNIdc.config(home_directory);
 
 		Emulator.nativeact = PreferenceManager.getDefaultSharedPreferences(
@@ -251,28 +231,6 @@ public class MainActivity extends AppCompatActivity implements
 		}
 	}
 
-	private void launchBIOSdetection() {
-		AlertDialog.Builder builder = new AlertDialog.Builder(this);
-		builder.setTitle(R.string.bios_selection);
-		builder.setPositiveButton(R.string.browse,
-				new DialogInterface.OnClickListener() {
-					public void onClick(DialogInterface dialog, int which) {
-						String home_directory = mPrefs.getString(Config.pref_home,
-								Environment.getExternalStorageDirectory().getAbsolutePath());
-						onMainBrowseSelected(false, home_directory, false, null);
-					}
-				});
-		builder.setNegativeButton(R.string.gdrive,
-				new DialogInterface.OnClickListener() {
-					public void onClick(DialogInterface dialog, int which) {
-						showToastMessage(getString(R.string.require_bios),
-								Snackbar.LENGTH_SHORT);
-					}
-				});
-		builder.create();
-		builder.show();
-	}
-
 	public void onFolderSelected(Uri uri) {
 		FileBrowser browserFrag = (FileBrowser) getSupportFragmentManager()
 				.findFragmentByTag("MAIN_BROWSER");
@@ -327,6 +285,28 @@ public class MainActivity extends AppCompatActivity implements
 		setTitle(R.string.browser);
 	}
 
+	public void launchBIOSdetection() {
+		AlertDialog.Builder builder = new AlertDialog.Builder(this);
+		builder.setTitle(R.string.bios_selection);
+		builder.setPositiveButton(R.string.browse,
+				new DialogInterface.OnClickListener() {
+					public void onClick(DialogInterface dialog, int which) {
+						String home_directory = mPrefs.getString(Config.pref_home,
+								Environment.getExternalStorageDirectory().getAbsolutePath());
+						onMainBrowseSelected(false, home_directory, false, null);
+					}
+				});
+		builder.setNegativeButton(R.string.gdrive,
+				new DialogInterface.OnClickListener() {
+					public void onClick(DialogInterface dialog, int which) {
+						showToastMessage(getString(R.string.require_bios),
+								Snackbar.LENGTH_SHORT);
+					}
+				});
+		builder.create();
+		builder.show();
+	}
+
 	@Override
 	public void onConfigurationChanged(Configuration newConfig) {
 		super.onConfigurationChanged(newConfig);
diff --git a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/InputFragment.java b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/InputFragment.java
index dfc0db3c0..46e71210b 100644
--- a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/InputFragment.java
+++ b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/InputFragment.java
@@ -33,10 +33,12 @@ import android.widget.Spinner;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import com.reicast.emulator.MainActivity;
+import com.reicast.emulator.Emulator;
 import com.reicast.emulator.R;
 import com.reicast.emulator.periph.Gamepad;
 
+import java.io.File;
+
 public class InputFragment extends Fragment {
 	private static final int PERMISSION_REQUEST = 1001;
 
@@ -90,11 +92,7 @@ public class InputFragment extends Fragment {
 			}
 		});
 
-		String home_directory = mPrefs.getString(Config.pref_home,
-				Environment.getExternalStorageDirectory().getAbsolutePath());
-
-		if (!MainActivity.isBiosExisting(home_directory) || !MainActivity.isFlashExisting(home_directory))
-			buttonLaunchEditor.setEnabled(false);
+		buttonLaunchEditor.setEnabled(isBIOSAvailable());
 
 		final TextView duration = (TextView) getView().findViewById(R.id.vibDuration_current);
 		final LinearLayout vibLay = (LinearLayout) getView().findViewById(R.id.vibDuration_layout);
@@ -251,6 +249,13 @@ public class InputFragment extends Fragment {
 		updateVibration();
 	}
 
+	private boolean isBIOSAvailable() {
+		String home_directory = mPrefs.getString(Config.pref_home,
+				Environment.getExternalStorageDirectory().getAbsolutePath());
+		return new File(home_directory, "data/dc_flash.bin").exists()
+				|| mPrefs.getBoolean(Emulator.pref_usereios, false);
+	}
+
 	private void updateVibration() {
 		boolean touchVibrationEnabled = mPrefs.getBoolean(Config.pref_touchvibe, true);
 		switchTouchVibrationEnabled.setChecked(touchVibrationEnabled);
diff --git a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/OptionsFragment.java b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/OptionsFragment.java
index d72971269..54457eb33 100644
--- a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/OptionsFragment.java
+++ b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/config/OptionsFragment.java
@@ -71,6 +71,7 @@ public class OptionsFragment extends Fragment {
 	// Container Activity must implement this interface
 	public interface OnClickListener {
 		void onMainBrowseSelected(boolean browse, String path_entry, boolean games, String query);
+		void launchBIOSdetection();
 	}
 
 	@Override
@@ -141,7 +142,7 @@ public class OptionsFragment extends Fragment {
 			public void onClick(View view) {
 				mPrefs.edit().remove(Config.pref_home).apply();
 				hideSoftKeyBoard();
-				mCallback.onMainBrowseSelected(false, home_directory, false, null);
+				mCallback.launchBIOSdetection();
 			}
 		});
 
@@ -474,14 +475,14 @@ public class OptionsFragment extends Fragment {
 		modifier_volumes.setOnCheckedChangeListener(mod_volumes);
 
 		CompoundButton interrupt_opt = (CompoundButton) getView().findViewById(R.id.interrupt_option);
-		OnCheckedChangeListener interrupthack = new OnCheckedChangeListener() {
+		OnCheckedChangeListener delayinterrupt = new OnCheckedChangeListener() {
 
 			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 				mPrefs.edit().putBoolean(Emulator.pref_interrupt, isChecked).apply();
 			}
 		};
 		interrupt_opt.setChecked(mPrefs.getBoolean(Emulator.pref_interrupt, false));
-		interrupt_opt.setOnCheckedChangeListener(interrupthack);
+		interrupt_opt.setOnCheckedChangeListener(delayinterrupt);
 
 //		final EditText bootdiskEdit = (EditText) getView().findViewById(R.id.boot_disk);
 //		String disk = Emulator.bootdisk;
diff --git a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/emu/JNIdc.java b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/emu/JNIdc.java
index 57443c69d..a4f91cd6c 100644
--- a/shell/android-studio/reicast/src/main/java/com/reicast/emulator/emu/JNIdc.java
+++ b/shell/android-studio/reicast/src/main/java/com/reicast/emulator/emu/JNIdc.java
@@ -39,7 +39,7 @@ public final class JNIdc
 	public static native void limitfps(int limiter);
 	public static native void nobatch(int nobatch);
 	public static native void nosound(int noaudio);
-	public static native void interrupthack(int interrupt);
+	public static native void delayinterrupt(int delayed);
 	public static native void mipmaps(int mipmaps);
 	public static native void widescreen(int stretch);
 	public static native void subdivide(int subdivide);
diff --git a/shell/android-studio/reicast/src/main/jni/src/Android.cpp b/shell/android-studio/reicast/src/main/jni/src/Android.cpp
index 743931f1b..e32c8da48 100644
--- a/shell/android-studio/reicast/src/main/jni/src/Android.cpp
+++ b/shell/android-studio/reicast/src/main/jni/src/Android.cpp
@@ -54,7 +54,7 @@ JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_broadcast(JNIEnv *env
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_limitfps(JNIEnv *env,jobject obj, jint limiter)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_nobatch(JNIEnv *env,jobject obj, jint nobatch)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_nosound(JNIEnv *env,jobject obj, jint noaudio)  __attribute__((visibility("default")));
-JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_interrupthack(JNIEnv *env,jobject obj, jint interrupt)  __attribute__((visibility("default")));
+JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_delayinterrupt(JNIEnv *env,jobject obj, jint delayed)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_mipmaps(JNIEnv *env,jobject obj, jint mipmaps)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_widescreen(JNIEnv *env,jobject obj, jint stretch)  __attribute__((visibility("default")));
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_subdivide(JNIEnv *env,jobject obj, jint subdivide)  __attribute__((visibility("default")));
@@ -118,9 +118,9 @@ JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_nosound(JNIEnv *env,j
     settings.aica.NoSound = noaudio;
 }
 
-JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_interrupthack(JNIEnv *env,jobject obj, jint interrupt)
+JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_delayinterrupt(JNIEnv *env,jobject obj, jint delayed)
 {
-    settings.aica.InterruptHack = interrupt;
+    settings.aica.DelayInterrupt = delayed;
 }
 
 JNIEXPORT void JNICALL Java_com_reicast_emulator_emu_JNIdc_mipmaps(JNIEnv *env,jobject obj, jint mipmaps)
diff --git a/shell/android-studio/reicast/src/main/res/values/strings.xml b/shell/android-studio/reicast/src/main/res/values/strings.xml
index 2c34ada08..b9d475c3a 100644
--- a/shell/android-studio/reicast/src/main/res/values/strings.xml
+++ b/shell/android-studio/reicast/src/main/res/values/strings.xml
@@ -50,7 +50,7 @@
     <string name="select_syncrender">Synchronous Rendering</string>
     <string name="select_queuerender">Force Queue Rendering</string>
     <string name="select_modvols">Enable Modifier Volumes</string>
-    <string name="select_interrupt">Enable Interrupt Hack</string>
+    <string name="select_interrupt">Enable Delay Interrupt</string>
     <string name="select_fps">Show On-Screen FPS</string>
     <string name="select_software">Use Software Layer</string>
     <string name="select_sound">Disable Emulator Sound</string>