IOS 16 developer issue - camera shows as a 3rd party replacement not as original equipment . Phone is a Iphone13 pro max bought brand new never repaired . Issue started as black screen when on photo mode or qr scan using back camera. All other modes had picture . Rebooted .. camera now works all modes but shows as unsupported replacement .
Camera unsupported
Contact Apple support, that will probably be more helpful than the forum. They may ask you to bring (or send) the device to an Apple Center.