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My iPhone 7 is stuck in a boot loop, I managed to read its panic logs using iDevice Panic Log Analyzer, the possible issue found was “Front Camera Flex U3301/J4503” Here you can find the panic log for reference Do you think it’s something repairable? Maybe changing the fron camera can help solve the problem? iPhone’s running iOS 15.6.1 Thanks a lot
Hi Andrea, My wife’s 7 plus had the same problem a couple of years ago, and it did indeed turn out to be the front camera assembly. You can test that on your phone by opening it up and unplugging the front camera. If it then proceeds to boot normally, all you have to do is order a new front camera and replace it and you’ll be all set. Here’s the part you need, which you can order with all the tools required to do the repair if you want. iPhone 7 Front Camera and Sensor Cable - iFixit Store in order to test whether the front camera will solve the problem, follow this guide up to Step 14, then skip step 15 and complete steps 16 and 17. Stop there, reconnect the battery and fold the screen back over the top of the phone. Power it on and verify whether it boots or not. iPhone 7 Front Camera and Sensor Cable Replacement - iFixit Repair Guide As I mentioned, this is what solved the problem for my wife’s phone, and given that you’ve already found indications of problems with the front camera flex cable documented in the phone logs, I’m pretty confident this will fix you right up. Good luck with your repair, and let us know how it goes!
Almost certainly repairable. iPhone 7 in particular is just boot loop happy. It has a reputation for boot looping at everything. But I agree. Front facing camera cable is a fair bet based on your kernel panic. Just for some context. This panic log is indicating there is an issue on the i2c2 “channel.” I2c (or i2c more properly) is an electronics communication protocol. It allows for communication between a Master chip and a bunch of “Underlings.” The Master chip may have several groups of subservient chips it’s trying to manage, denoted in this case by the different number. i2c2 is just a way of the second i2c group. So the CPU (likely, that’s often the master chip in an iPhone) is checking its ability to communicate, but it is not able to. If you continue reading, the phrase “for device als” appears in the second line of the panic. The ALS is the Ambient Light Sensor. Which is located on the same cable assemble as the front facing camera. So that’s where I would start.
