No working camera and flash

This sounds simple but try blowing on the connectors to make sure there is no dust or anything that fixed my iPhone 6 flash not working

Did you find a solution yet?

Hello, on my ip X no working front,rear camera and flash. When i try open camera app, there is just black screen. When i try turn on flash (no in camera app) , no working..

I try already change few times rear camera, front camera, flash.. still no working. When i put logic board to another ip x, there working without problem.. How it is possible ?