I would consider myself an etc. So here's my take.
Believe it or not removing the camera is probably a non- issue. You'll probably get some warnings about the camera not being present, but those can be ignored. Replacing your back panel, however might come with some less fun side effects.
- No flashlight or wireless charging. They're part of the back glass assembly. And without the camera, the flashlight probably won't work anyway due to the way that circuit works.
- Removing the back glass is highly likely to generate an issue where the phone will reboot every few minutes. There is a sensor in the flex cable on the back glass that the phone is expecting check ins from. And if they are not present, it will just reboot (hoping I assume, it will be available after the reboot). Which might make your phone much less usable.
There are probably ways around the second item if you can move the wireless charge coil and all the bits attached to that cable to the new back panel. But that can be a tricky endeavor. And in the iPhone 14 and 14 Plus, where the back panel was redesigned, the original parts are needed to prevent the loop since there is some parts pairing at play. I haven't had an opportunity to check this yet, but I would fully expect it to do this on 15 series as well.
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