I replaced a touch screen on a 3gs for a friend. The phone had been dropped and shattered the screen. When i took the phone apart the little tab that holds the #3 connector in place was broken. I was able to use a small strip of hockey tape to secure the rippon in place. When I turned the phone on it was very dim. I disassembled the phone and put it together again to make sure i hadn't made an error. The screen was dim again. I read in a few forums that possible updating the phone could solve the problem, it connected to itunes and updated without any problems. It rebooted and the screen was dim. I tried changing the LCD screen and the screen stayed dim. I left the phone for a short time and came back and it was very hot. I disassembled and took the battery out. I reassembled again and it will connect to itunes but I get nothing on the screen. All of the connections look fine with the exception of #3 which is being held inplace with hockey tape. Would missing that connector be causing me all of this grief? 