The camera needs to have the lens shield replaced from the prior screen or it will not work. The lens shield pushes the camera tight against the back steel retainer making contact with it and then the retainer makes contact with the bottom side of the board for grounding purposes. The fix without the camera lens shield is to wedge a small piece of metal between forcing/making contact with the metal retainer.
I researched this to no end and I think finally I resolved it. YOU MUST replace the front lens from the old screen or it won/t work. The lens pushes the camera to make contact with the steel shield on the back of camera which then grounds it to the under side of board. With out the it, it becomes useless because it isn't grounded correctly. I used a small metal ground between the camera and it's metal bracket for the ground.