LCD not turning on after I replaced the screen.

FIXED!! I removed the 2 screws (power connector and other one next to it) inserted a plastic tool between the board and the back of the iPad. I left it for a couple of minutes. Then reinstalled the screws and pressed the home and power buttons. And the screen lit up with apple logo and it asked for password. Thanks for the tip.

What he means by full restore is to do a hard power reset. Hold down the power button and the home button at the same time for approx. 10 sec.

Thanks @ firestormmedia, that was the only solution that worked for me. I unscrewed the motherboard and lifted it up, thus disconnecting the battery and effectively removing the battery. After than, I assembled the iPad back together, and everything worked.

On a related note: I was using metal tongues to put the wires/chords into their places, which may have caused this problem. I recommend using fingers instead of anything metal to reconnect the wires and cables.

don't do a full restore just yet!! first make sure the lcd and digitizer are plugged in then unplug the battery and plug it back in attempt to turn it on!!

No, to disconnect the battery, just remove the screw in the battery connector an slide a piece of paper in between the battery contacts and the main board (it helps to raise the edge of the main board slightly first).

How do you do a full RESTORE?

I had exactly the same issue with a screen not working after being replaced on an iPad mini. The ipad was obviously working because holding down the home button would activate siri. Holding down the power and home button to do a hard reset fixed it for me.

Hard RESET Thank you!

HARD RESET WORKS!!!!!!!!!!!!!!!! THANK YOU!!!!!

:) :) :) :)

I've been without my ipad for over 6 months!! Thanks

This is happening to me, when plugging it into itunes it is saying that I need to update or do a restore. I did the update then it said I have to do the restore but the restore is not working.

Any help would be appreciated!

Replaced the digitizer and could not power up the iPad (everything was completely black, I knew that it was not completely dead because iTunes identified it ). Opened and close several times, disconnecting panel and digitizer every time with no luck. Loosening the mother board, disconnecting the battery and putting paper underneath the board worked !!! Was so happy to see the apple showing up !!.

Thanks for the useful hint !!!

I have the same problem after replacing new digitiser and LCD. From boot up LCD works fine but if I turn it off then back on from the power button, it will not display the LCD, just the back light.

Could it be a random faulty LCD? I doubt it as it was new and it does work from a re-boot.