Hello. I installed today IOS 7 Beta 3 on my iPhone 5 just to try it. So after i downgrade back to 6.1.4 i notice that the screen is flickering, not all of it. Its flickering in the borders not in the center. I have tried lots of restores using DFU mode but when it gets up it is still flickering. Before i try that it was normal so anyone has any ideas?