I replaced the ipad 2 power switch flex cable and the digitizer- I tore the original flex cable taking off the broken digitizer. I got all parts installed today and screwed everything back together again, I didn't tape down the digitizer because I wanted to test it first before taping it down. Tried to power it up and it wouldn't power then I plugged it in because i figured the battery could be dead- I held power button and the apple icon came one for 5 secs or so and then went black. Now I can not get any image but I can hear the sound when I plug the charger in any ideas what I need to do? Sorry if this is a question others have asked I tried to look at the previous post and didn't see anything. Thanks for any advice.