I changed the broken digitizer of an iPad 2, and used what turned out to be a poor kind of adhesive to glue it back.
10 days later the digitizer became loose and I needed to re-glue it.
So I disconnected the LCD and digitizer, and cleaned the old adhesive using rubbing alcohol.
Before gluing the digitizer back, I tested the iPad and found that the LCD remained black.
I plugged the iPad to the charger and heard the charging sound, so the iPad was working fine.
I tested the LCD on a another iPad, and there it worked.
So I tried rebooting the iPad by pressing HOME BUTTON + ON/OFF BUTTON at the same time for 10-15 seconds, but nothing happened. The iPad wouldn't restart/turn off (I could still hear the charging sound when I plug it in).
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'''So I shorted the 2 golden pins of the Home Button while pressing the ON/OFF Button for 10 seconds. This time the restart was successful, and the LCD came back to life.'''
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'''So I shorted the 2 golden pins of the Home Button while pressing the ON/OFF Button for 10 seconds. This time the restart was successful, and the LCD came back to life.''' JUST MAKE SURE YOU DON'T SHORT ANYTHING ELSE AT THE SAME TIME!!
Turns out the home button was not seated well enough (especially that the digitizer was not tightly back in place).
So I recommend the following:
-Try the LCD and everything else before disassembly to make sure nothing was defective to start with!
-TURN OFF THE DEVICE,
-Do the repair/change the digitizer or whatever...,
-Connect the LCD, and digitizer but don't glue it back in,
-Turn on the device and test the LCD and everything else,
-Turn it off and finish the re-assembly and glueing.
I changed the broken digitizer of an iPad 2, and used what turned out to be a poor kind of adhesive to glue it back.
10 days later the digitizer became loose and I needed to re-glue it.
So I disconnected the LCD and digitizer, and cleaned the old adhesive using rubbing alcohol.
Before gluing the digitizer back, I tested the iPad and found that the LCD remained black.
I plugged the iPad to the charger and heard the charging sound, so the iPad was working fine.
I tested the LCD on a another iPad, and there it worked.
So I tried rebooting the iPad by pressing HOME BUTTON + ON/OFF BUTTON at the same time for 10-15 seconds, but nothing happened. The iPad wouldn't restart/turn off (I could still hear the charging sound when I plug it in).
'''So I shorted the 2 golden pins of the Home Button while pressing the ON/OFF Button for 10 seconds. This time the restart was successful, and the LCD came back to life.'''
Turns out the home button was not seated well enough (especially that the digitizer was not tightly back in place).
So I recommend the following:
-Try the LCD and everything else before disassembly to make sure nothing was defective to start with!
-TURN OFF THE DEVICE,
-Do the repair/change the digitizer or whatever...,
-Connect the LCD, and digitizer but don't glue it back in,
-Turn on the device and test the LCD and everything else,
-Turn it off and finish the re-assembly and glueing.