diff --git a/src/AndroidFileChooserBinding/AndroidFileChooserBinding.csproj b/src/AndroidFileChooserBinding/AndroidFileChooserBinding.csproj
index cd69c444..7b39d548 100644
--- a/src/AndroidFileChooserBinding/AndroidFileChooserBinding.csproj
+++ b/src/AndroidFileChooserBinding/AndroidFileChooserBinding.csproj
@@ -72,7 +72,7 @@
   </Target>
   -->
   <ItemGroup>
-    <LibraryProjectZip Include="..\..\..\..\Users\Philipp\Documents\keepass2android\repo\keepass2android19\src\java\android-filechooser\code\project.zip">
+    <LibraryProjectZip Include="..\java\android-filechooser\code\project.zip">
       <Link>project.zip</Link>
     </LibraryProjectZip>
   </ItemGroup>
diff --git a/src/AndroidFileChooserBinding/Transforms/Metadata.xml b/src/AndroidFileChooserBinding/Transforms/Metadata.xml
index 6281b04b..ea974e92 100644
--- a/src/AndroidFileChooserBinding/Transforms/Metadata.xml
+++ b/src/AndroidFileChooserBinding/Transforms/Metadata.xml
@@ -1,6 +1,7 @@
 <metadata>
 	<remove-node path="/api/package[@name='group.pals.android.lib.ui.filechooser.providers.localfile']/class[@name='FileObserverEx']" />
 	<remove-node path="/api/package[@name='group.pals.android.lib.ui.filechooser']/class[@name='FragmentFiles']" />
+	<remove-node path="/api/package[@name='group.pals.android.lib.ui.filechooser.prefs']" />
 
 	
 	<!--
diff --git a/src/Kp2aBusinessLogic/Io/JavaFileStorage.cs b/src/Kp2aBusinessLogic/Io/JavaFileStorage.cs
index 14bf2815..50ce1547 100644
--- a/src/Kp2aBusinessLogic/Io/JavaFileStorage.cs
+++ b/src/Kp2aBusinessLogic/Io/JavaFileStorage.cs
@@ -93,13 +93,31 @@ namespace keepass2android.Io
 		}
 
 
-		private Exception LogAndConvertJavaException(Java.Lang.Exception e)
+		private Exception LogAndConvertJavaException(Exception e)
 		{
 			Kp2aLog.Log(e.Message);
-			var ex = new Exception(e.LocalizedMessage ?? 
-				e.Message ?? 
-				_app.GetResourceString(UiStringKey.ErrorOcurred)+e.GetType().Name, e);
-			return ex; 
+
+			if (e is UserInteractionRequiredException)
+				return e;
+			//seems like UserInteractionRequiredException is not propagated correctly into the C# world, we can't catch it
+			// -> rethrow correctly here
+			// Note: the Contains-check looks a bit broad, but it should be safe
+			if (e.ToString().Contains("keepass2android.javafilestorage.UserInteractionRequiredException"))
+			{
+				throw new UserInteractionRequiredException();
+			}
+
+			Java.Lang.Exception exception = e as Java.Lang.Exception;
+			if (exception != null)
+			{
+				var ex = new Exception(exception.LocalizedMessage ??
+					e.Message ??
+					_app.GetResourceString(UiStringKey.ErrorOcurred) + exception.GetType().Name, e);
+				return ex; 	
+			}
+
+			return e;
+
 		}
 
 		public IWriteTransaction OpenWriteTransaction(IOConnectionInfo ioc, bool useFileTransaction)
@@ -241,12 +259,38 @@ namespace keepass2android.Io
 
 		public void PrepareFileUsage(IFileStorageSetupInitiatorActivity activity, IOConnectionInfo ioc, int requestCode, Boolean alwaysReturnSuccess)
 		{
-			_jfs.PrepareFileUsage((IJavaFileStorageFileStorageSetupInitiatorActivity)activity, IocToPath(ioc), requestCode, alwaysReturnSuccess);
+			try
+			{
+				_jfs.PrepareFileUsage((IJavaFileStorageFileStorageSetupInitiatorActivity) activity, IocToPath(ioc), requestCode,
+				                      alwaysReturnSuccess);
+			}
+			catch (Exception e)
+			{
+				throw LogAndConvertJavaException(e);
+			}
 		}
 
 		public void PrepareFileUsage(Context ctx, IOConnectionInfo ioc)
 		{
-			_jfs.PrepareFileUsage(ctx, IocToPath(ioc));
+			try
+			{
+				_jfs.PrepareFileUsage(ctx, IocToPath(ioc));
+			}
+			catch (Exception e)
+			{
+				throw LogAndConvertJavaException(e);
+			}
+			
+		}
+
+		public bool IsPermanentLocation(IOConnectionInfo ioc)
+		{
+			return true;
+		}
+
+		public bool IsReadOnly(IOConnectionInfo ioc)
+		{
+			return false; //TODO implement. note, however, that we MAY return false even if it's read-only
 		}
 
 		public bool IsPermanentLocation(IOConnectionInfo ioc)
diff --git a/src/java/InputStickAPI/src/com/inputstick/api/layout/GermanLayout.java b/src/java/InputStickAPI/src/com/inputstick/api/layout/GermanLayout.java
index d85e6917..75709a39 100644
--- a/src/java/InputStickAPI/src/com/inputstick/api/layout/GermanLayout.java
+++ b/src/java/InputStickAPI/src/com/inputstick/api/layout/GermanLayout.java
@@ -153,6 +153,49 @@ public class GermanLayout extends KeyboardLayout {
 		
 	};
 	
+	public static final int DEADKEYS[] = {
+		0x0060, 0x00b4, 0x005e
+	};
+	
+	public static final int DEADKEY_LUT[][] = {
+		{	0x00b4	,	0x0079	,	0x00fd	}	,
+		{	0x00b4	,	0x0061	,	0x00e1	}	,
+		{	0x00b4	,	0x0065	,	0x00e9	}	,
+		{	0x00b4	,	0x0075	,	0x00fa	}	,
+		{	0x00b4	,	0x0069	,	0x00ed	}	,
+		{	0x00b4	,	0x006f	,	0x00f3	}	,
+		{	0x00b4	,	0x0059	,	0x00dd	}	,
+		{	0x00b4	,	0x0041	,	0x00c1	}	,
+		{	0x00b4	,	0x0045	,	0x00c9	}	,
+		{	0x00b4	,	0x0055	,	0x00da	}	,
+		{	0x00b4	,	0x0049	,	0x00cd	}	,
+		{	0x00b4	,	0x004f	,	0x00d3	}	,
+		{	0x00b4	,	0x0020	,	0x00b4	}	,
+		{	0x0060	,	0x0061	,	0x00e0	}	,
+		{	0x0060	,	0x0065	,	0x00e8	}	,
+		{	0x0060	,	0x0075	,	0x00f9	}	,
+		{	0x0060	,	0x0069	,	0x00ec	}	,
+		{	0x0060	,	0x006f	,	0x00f2	}	,
+		{	0x0060	,	0x0041	,	0x00c0	}	,
+		{	0x0060	,	0x0045	,	0x00c8	}	,
+		{	0x0060	,	0x0055	,	0x00d9	}	,
+		{	0x0060	,	0x0049	,	0x00cc	}	,
+		{	0x0060	,	0x004f	,	0x00d2	}	,
+		{	0x0060	,	0x0020	,	0x0060	}	,
+		{	0x005e	,	0x0061	,	0x00e2	}	,
+		{	0x005e	,	0x0065	,	0x00ea	}	,
+		{	0x005e	,	0x0075	,	0x00fb	}	,
+		{	0x005e	,	0x0069	,	0x00ee	}	,
+		{	0x005e	,	0x006f	,	0x00f4	}	,
+		{	0x005e	,	0x0041	,	0x00c2	}	,
+		{	0x005e	,	0x0045	,	0x00ca	}	,
+		{	0x005e	,	0x0055	,	0x00db	}	,
+		{	0x005e	,	0x0049	,	0x00ce	}	,
+		{	0x005e	,	0x004f	,	0x00d4	}	,
+		{	0x005e	,	0x0020	,	0x005e	}	,
+		
+	};
+	
 	private static GermanLayout instance = new GermanLayout();
 	
 	private GermanLayout() {
diff --git a/src/java/JavaFileStorage/src/keepass2android/javafilestorage/DropboxFileStorage.java b/src/java/JavaFileStorage/src/keepass2android/javafilestorage/DropboxFileStorage.java
index dcb22052..e66b4533 100644
--- a/src/java/JavaFileStorage/src/keepass2android/javafilestorage/DropboxFileStorage.java
+++ b/src/java/JavaFileStorage/src/keepass2android/javafilestorage/DropboxFileStorage.java
@@ -175,7 +175,7 @@ public class DropboxFileStorage extends JavaFileStorageBase {
     		Log.d(TAG, "LoggedIn=false (due to unlink exception)");
     		setLoggedIn(false);
     		clearKeys();
-    		return new Exception("Unlinked from Dropbox!", e);
+    		return new UserInteractionRequiredException("Unlinked from Dropbox! User must re-link.", e);
     		
     	}
     	
diff --git a/src/java/JavaFileStorage/src/keepass2android/javafilestorage/GoogleDriveFileStorage.java b/src/java/JavaFileStorage/src/keepass2android/javafilestorage/GoogleDriveFileStorage.java
index 25b5018c..b7632242 100644
--- a/src/java/JavaFileStorage/src/keepass2android/javafilestorage/GoogleDriveFileStorage.java
+++ b/src/java/JavaFileStorage/src/keepass2android/javafilestorage/GoogleDriveFileStorage.java
@@ -281,13 +281,16 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	@Override
 	public InputStream openFileForRead(String path) throws Exception {
 
+		logDebug("openFileForRead...");
 		GDrivePath gdrivePath = new GDrivePath(path);
 		Drive driveService = getDriveService(gdrivePath.getAccount());
 
 		try
 		{
 			File file = getFileForPath(gdrivePath, driveService);
-			return getFileContent(file, driveService);
+			InputStream res =  getFileContent(file, driveService);
+			logDebug("openFileForRead ok.");
+			return res;
 		}
 		catch (Exception e)
 		{
@@ -340,15 +343,17 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	@Override
 	public void uploadFile(String path, byte[] data, boolean writeTransactional)
 			throws Exception {
-		
-		ByteArrayContent content = new ByteArrayContent(null, data);
-		GDrivePath gdrivePath = new GDrivePath(path);
-		Drive driveService = getDriveService(gdrivePath.getAccount());
+		logDebug("upload file...");		
 		try
 		{
+			ByteArrayContent content = new ByteArrayContent(null, data);
+			GDrivePath gdrivePath = new GDrivePath(path);
+			Drive driveService = getDriveService(gdrivePath.getAccount());
+			
 			File driveFile = getFileForPath(gdrivePath, driveService);
 			getDriveService(gdrivePath.getAccount()).files()
 					.update(driveFile.getId(), driveFile, content).execute();
+			logDebug("upload file ok.");
 		}
 		catch (Exception e)
 		{
@@ -451,8 +456,11 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	}
 
 	private Exception convertException(Exception e) {
+		logDebug("Exception: " + e.toString());
+		e.printStackTrace();
 		if (UserRecoverableAuthIOException.class.isAssignableFrom(e.getClass()))
 		{
+			logDebug("clearing account data.");
 			//this is not really nice because it removes data from the cache which might still be valid but we don't have the account name here...
 			mAccountData.clear();
 		}
@@ -682,29 +690,37 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	
 	private void initializeAccount(final Context appContext,
 			final String accountName) throws IOException {
+		logDebug("Init account for " + accountName);
 		if (!mAccountData.containsKey(accountName))
 		{
 			AccountData newAccountData = new AccountData();
 			newAccountData.drive = createDriveService(accountName, appContext);
 			mAccountData.put(accountName, newAccountData);
 			logDebug("Added account data for " + accountName);
-			//try to finish the initialization. If this fails, we throw.
-			//in case of "Always return true" (inside CachingFileStorage) this means
-			//we have a partially uninitialized AccountData object. 
-			//We'll try to initialize later in verify() if (e.g.) network is available again.
-			finishInitialization(newAccountData, accountName);
 		}
+		AccountData accountData = mAccountData.get(accountName);
+		//try to finish the initialization. If this fails, we throw.
+		//in case of "Always return true" (inside CachingFileStorage) this means
+		//we have a partially uninitialized AccountData object. 
+		//We'll try to initialize later in verify() if (e.g.) network is available again.
+		finishInitialization(accountData, accountName);
 	}
 
 
 
 	private void finishInitialization(AccountData newAccountData, String accountName) throws IOException
 	{
+		
 		if (TextUtils.isEmpty(newAccountData.mRootFolderId))
 		{
+			logDebug("Finish init account for " + accountName);
 			About about = newAccountData.drive.about().get().execute();
 			newAccountData.mRootFolderId = about.getRootFolderId();
 		}
+		else
+		{
+			logDebug("Account for " + accountName + " already fully initialized.");
+		}
 	}
 
 	@Override
@@ -726,6 +742,7 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	{
 		try
 		{
+			logDebug("prepareFileUsage " + path + "...");
 			String accountName;
 			GDrivePath gdrivePath = null;
 			if (path.startsWith(getProtocolPrefix()))
@@ -740,9 +757,11 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 				accountName = path;
 			
 			initializeAccount(appContext, accountName);	
+			logDebug("prepareFileUsage ok");
 		}
 		catch (UserRecoverableAuthIOException e)
 		{
+			logDebug("prepareFileUsage: UserInteractionRequiredException");
 			throw new UserInteractionRequiredException(e);
 		}
 		
@@ -764,6 +783,7 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	@Override
 	public void onStart(final JavaFileStorage.FileStorageSetupActivity setupAct) {
 
+		logDebug("onStart");
 		Activity activity = (Activity)setupAct;
 
 		if (PROCESS_NAME_SELECTFILE.equals(setupAct.getProcessName()))
diff --git a/src/java/JavaFileStorage/src/keepass2android/javafilestorage/UserInteractionRequiredException.java b/src/java/JavaFileStorage/src/keepass2android/javafilestorage/UserInteractionRequiredException.java
index c30d6dbd..4b52a815 100644
--- a/src/java/JavaFileStorage/src/keepass2android/javafilestorage/UserInteractionRequiredException.java
+++ b/src/java/JavaFileStorage/src/keepass2android/javafilestorage/UserInteractionRequiredException.java
@@ -1,10 +1,8 @@
 package keepass2android.javafilestorage;
 
-import com.google.api.client.googleapis.extensions.android.gms.auth.UserRecoverableAuthIOException;
-
 public class UserInteractionRequiredException extends Exception {
 
-	public UserInteractionRequiredException(UserRecoverableAuthIOException e) {
+	public UserInteractionRequiredException(Throwable e) {
 		super(e);
 	}
 	
@@ -12,6 +10,10 @@ public class UserInteractionRequiredException extends Exception {
 
 	}
 
+	public UserInteractionRequiredException(String string, Throwable e) {
+		super(string, e);
+	}
+
 	/**
 	 * 
 	 */