Iphone 3g I bought a battery and did a DIY. The battery install was easy. But now my screen insn't working. I have assembled and reassembled numerous times. Still nothing. I check all the connectors and they seem to be connected snuggly. (The connection 3 was very difficult to get back in.) The phone is working. If I insert my sim card, it rings. The home button works, the top button works. Everything is ok, expect for the screen. No image! Any ideas what the problem could be>? Google wasn't any help.