iOS & cardboard screen rotation issue

I'm making a NYT VR like app and i give the user the opportunity to decide wether view the videos through a cardboard or simple mobile. after this choise, i rotate the screen (might sound an useless information, but i guess this is the real problem) using this code:

 Screen.autorotateToLandscapeLeft = true;
 Screen.autorotateToLandscapeRight = false;
 Screen.autorotateToPortrait = false;
 Screen.autorotateToPortraitUpsideDown = false;
 Screen.orientation = ScreenOrientation.LandscapeLeft;

So this goes well if the user decides for the "standard" view without cardboard. But if he decides for the cardboard then i activate the VR using

 Cardboard.SDK.VREnabled = true

and it all fucks up like this:

Has anybody a solution to this?