IPhone 4 Glass Replacement - Still Black
We just replaced a broken screen on an Iphone 4 using a kit bought online that had good reviews, and following instructions found online. Everything seemed to go well, but we cleaned some connections with isopropyl alcohol, then found some warnings against cleaning. The repair did not work. Is there a way to "undo" cleaning the connections ?
What else could be the problem ? We've openend it back up & nothing seems to be wrong. The phone does ring when you call it, but the screen does not display anything.