My galaxy note 2 was recently repaired do to a broken screen. Now that I have it back with a replaced LCD screen the front camera wont work. It is probably a hardware problem but I dont want to wait another couple of weeks for it to get fixed. Now everytime I want to use the camera app or other apps(like instagram or snapchat) it just tells me that it cant connect to the camera and kills the app. How do i set the phone to using just the back camera for every app?