Samsung Galaxy S4 I9500 Camera Solution Jumper
https://gsmfixer.blogspot.com/2015/10/samsung-galaxy-s4-i9500-camera-solution.html
This Post will help you to solve the Samsung Galaxy S4 I9500 Camera Not Working Problem with hardware repairing. In order to solve this problem you have to to trace some point on the board and make jumpers as shown in the diagram. Kindly clean your board with original thinner and dry it before repairing.
