iphonerepair
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.
This is a hardware problem. This comes up when the ribbon connector from the camera to the main circuit board comes loose or gets disconnected altogether. If you have the right tools and enough DIY skills to open up your iPhone, it's a very simple fix that should be fairly obvious to see. Otherwise, the Apple Store should be able to repair it for you (I would think free of charge, but who knows).
If you do want to take apart your iPhone and attempt the repair yourself, PowerBook Medic has some really nice instructions for taking apart all versions of iPhones from 3GS and above. They also sell replacement parts and will repair it for you as well if you want. (Disclaimer: I have no affiliation nor prior experience with this company, so use at your own risk.)
This is what the front camera of an iPhone 4 looks like:
That little white/silver part is what's probably come loose; just pushing down on it gently should allow it to snap right back in.
This is definitely a hardware problem. It comes from the flash not being properly connected or the connectors on the board being damaged. Normally reseating the connection fixes the issue. He was probably a little heavy handed when he put the phone back together or the board has suffered ESD damage.
As well as this being annoying, it will drain the battery.
Best Answer
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.