Swapped out logic board screen is black.
Took the advice of another,... ;-0 Swapped out logic board on an A1387 not sure what carrier with a board from same model Verizon. Nothing happened so I swapped them back. Got a black screen seems like the lcd works. I knew better then to mess with this, but I did. So what did I screw up? Certain I fried the digitizer.
Is this a good question?