-    private void accessRootFolderRemoteOperation(String username, String password) {\r
-        Intent existenceCheckIntent = new Intent();\r
-        existenceCheckIntent.setAction(OperationsService.ACTION_EXISTENCE_CHECK);\r
-        existenceCheckIntent.putExtra(OperationsService.EXTRA_SERVER_URL, mServerInfo.mBaseUrl);\r
-        existenceCheckIntent.putExtra(OperationsService.EXTRA_REMOTE_PATH, "/");\r
-        existenceCheckIntent.putExtra(OperationsService.EXTRA_USERNAME, username);\r
-        existenceCheckIntent.putExtra(OperationsService.EXTRA_PASSWORD, password);\r
-        existenceCheckIntent.putExtra(OperationsService.EXTRA_AUTH_TOKEN, mAuthToken);\r
-        \r
-        if (mOperationsServiceBinder != null) {\r
-            //Log_OC.wtf(TAG, "starting existenceCheckRemoteOperation..." );\r
-            mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(existenceCheckIntent);\r
-        }\r
+    private void accessRootFolder(OwnCloudCredentials credentials) {\r
+        mAsyncTask = new AuthenticatorAsyncTask(this);\r
+        Object[] params = { mServerInfo.mBaseUrl, credentials };\r
+        mAsyncTask.execute(params);\r