Screen backlight randomly shuts off
Hi! I recently got iPhone 5s, and after some time cracked my screen. It was ok for two weeks, and the in started to shut off the screen randomly. I can receive phone calls, notifications. The backlight randomly shuts off, and in bright light i can see, that the screen works. I can even type passcode and unlock it, when the screen black. Just now i swapped the screen with new one, and the problem is still there. I can make screen on longer by tapping it on back few times. Is there a way to fix it at home?
Is this a good question?