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I have a 6 Plus 128 gig iPhone and I just replacing the battery and use the guide here. No problems got apart and battery out was so happy. Put new battery in. Booted the phone and now I have a black screen with 4 white lines running down the middle of the screen. Tried several time reset the cables mainly the display data cable. I even did what it said to do and power cycle your phone. Still black screen with white lines. Can some tell me what is wrong and how I can fix it? Please. Thank you
This would be definitely a connection problem. Mostly caused by the touch connector I would recommend checking the touch connector from the screen it only takes a couple of failed attempts at connecting it to cause damage. The touch connector is long on a 6 plus and it must be seated properly. Check under a magnifying glass to make sure. It is not that difficult to replace your screen. Just follow the guides. · Screen replacement. · Front camera and sensor replacement.
From my experience it would be time for a new screen as it may have been damaged in the process of removal. Is the screen retaining touch functionality?