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Cellular version of Apple's 2nd generation iPad Air. Model A1567.

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Backlight only no Apple logo or screen after screen replacement

I just replaced an iPad Air 2 LCD and digitizer but the display is only showing the backlight. I’m getting no Apple logo or any thing showing on the screen. I have also discovered when I push down on the longer LCD cable connected to the logic board I hear Siri chime. I can hear the click when pushing sleep wake but no matter what I do no display. I have tried reseating the cables, a hard reset as well as connecting the old damaged screen (minus the home button) but to no avail no screen.

Update: I should clarify the old damaged screen works but has lines all up and down it. But it does actually display something whereas the new screen shows absolutely nothing.

Has as anyone else experienced this?!

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I should clarify the old broken screen works but just has lines on it. The new screen has nothing

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Did you isolate the battery before disconnecting and re-connecting the display assembly, as seen here in steps 29-30 of this guide?

Failure to do this exposes the LCD and or backlight circuit to short circuits. This would then be a logic board issue and the usual test would be to plug the original screen back. In this case, both your screens suffer from the same problem so you most likely have a logic board failure. Look around the connectors to see if there is a damaged or burnt component. This will require a micro-soldering repair and is not DIY.

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Sometimes the tiny pins get damaged also on the connection points where the assembly plugs into the board.

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