I fixed it finally! I did everything, reset, factory reset. I did a cache delete then reboot. Nothing worked. I turned off battery saver. I heard it was something do with power not getting properly to the display. Then I thought hey I just recently turned on biometrics for fingerprint unlock . I turned off EVERYTHING to do with finger print scanner and biometrics. Haven't had a problem since! Hope this helps. Try everything before getting new screen!

I did everything, reset, factory reset. I did a cache delete then reboot. Nothing worked. I turned off battery saver. I heard it was something do with power not getting properly to the display. Then I thought hey I just recently turned on biometrics for fingerprint unlock . I turned off EVERYTHING to do with finger print scanner and biometrics. Haven't had a problem since! Hope this helps. Try everything before getting new screen!