Bro just enable full screen for particular app. If you are not getting fullsreen with that game then the game is not optimized for this device. For that you have to contact game developer give it as feedback. Even Wcc3 not supported fullscreen at 1st contacted developer and they said game will be optimized for your device next time. As promised with next update I was able to play in full screen.
To resolve the issue kindly follow the given below steps:-
1. Check device in safe mode:- Press and hold the Power key, when Power off icon appears >Press and hold the power off icon. Exit safe mode: Hold the power button and select restart on the device.
2. Reset the device:- Settings >General Management > Tap on Reset. Note: Before reset make sure to have back up of the data via Smart Switch Mobile App (Install Smart Switch App > Open > Click on Memory Card Icon >Back Up option > Choose the data for Back up > Back Up).
If the issue still persist, kindly register your concern in Samsung Members app (Samsung Members app > Get help > Feedback > Error report/ask question). Note: Please send device log files within 15 minutes of issue occurrence along with the exact issue details.
