Replacement screen Not working.
To start, I repair phones professionally. I have done many, MANY screen replacements.
This time, I've installed the new screen... and there is sounds, but no picture. The screen also is recognizing touches, because I can unlock it and hear the clicking when I select icons I can't see. But the LCD won't light up. Nothing is loose. Nothing is broken. I even tried connecting the screen from my own phone, another 6s Plus. No dice. What the heck could the problem be? I deduce that it must be an issue with the logic board, but after a tear down I can't find anything that looks blown or broken. I'm at my wit's end, and I'm not about to buy this customer a replacement iPhone. Do any of you folks have insight??
Is this a good question?