Chosen Solution
The owner put his iPad down and forgot it, then ran it over (yikes), spiderwebbing the glass across the whole device. The LCD did still work, but the removal process wasn’t kind to it and it got broken. Fast forward, I’m testing the new display unit and I get nothing but a backlight. The device still works underneath, I can unlock it and everything if I guess the right spots on the screen. I read some other threads on here and hooked the old display back in, I get lots of pretty lines, so is the LCD driver still intact? I’ve checked and re-checked everything, but I can’t see anything horrifically out of place or disfigured. Bad replacement unit or something fried on the logic board?
@paul_r this “hooked the old display back in, I get lots of pretty lines,” makes it sound like your new LCD is part of the problem. Double check your work, the cable ends etc.,. The colored lines on the broken screen are normal for that screen, but shows that it still gets a signal.
