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Hi, does anybody know that S7 edge phone face down and there were no cracks but a small back spec appeared on screen. Now the phone screen is flickering and turns black when the phone overheats. Screen works perfectly but I’m not sure what is the problem. Please help determine the problem, THANKS in advance!

@kaye “but a small back spec appeared " pretty indicative of a broken display. Remember that displays can break without cracking the outside glass. The only way to repair is by replacing the display. Here is a decent video that shows how to do it.