Replace ipHone 3gs Battery now screen black.

[gmorgens]

I replaced the battery and reassembled the phone and the screen is now black, i ended up sending it to Iresq and they said I need a new lcd because I guess i broke the tab on the end of it and I also need a new logic board. I can plug it in, itunes recognizes and restores it, and it vibrates, but screen is black and no visual.

If it is really the logic board than Ill just sell it for parts, I was just keeping it for an extra to use as an ipod for the gym. Any thoughts?

[unklbyl]

Have you done the reset power and home button?
Try opening it back up and connecting the display again. If the ribbon 1 or 2 are not seated all the way, you get no power. Just a thought.