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.