Found this solution.

Courtsey of binjunior.apple [Only registered and activated users can see links. ]



Remove the back of the phone and the shield up at the top.





Remove the camera and insulate the gold exposed tab and replace everything.





Also worth noting comments:

There are two pins or tiny resistors on the back side of the goldish tab in photo. One had a tiny bit of corrosion that was only visible Along with a magnifying glass. I cleaned it by gently rubbing it Along with a toothpick which may fix the issue.


NOTE: You can see the two pins right next to the camera after removing the back glass. You dont have to remove anything else. Hope this to be helpeds someone.