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The front camera, rear camera and the flash light all stopped working simultaneously after I changed the charging port of my iPhone 6 myself (Apple doesn't do this).
I initially thought that the cable might not have been seated properly but that is not the case, I'm pretty sure.
Is there a way I can go about diagnosing this?
Edit: I followed this video for changing the port - https://www.youtube.com/watch?v=qnX_KKJnjOQ
The rest of the phone, including the new port, is working totally normally.
There is a power supply chip responsible for powering both cameras if you removed the display you may have accidentally have damaged this small and delicate chip, without power to the cameras the flashlight will also not work. You can see the chip pointed out by a pair of tweezers in the picture below. it is normally covered in the black substance like the parts around it, I removed it in order to give a clearer view of the chip in question.
