You cannot troubleshoot this step by unplugging the bad flex.The iPhone 11, renowned for its advanced features and exceptional performance, has been a sought-after device for many users worldwide. Please note: You MUST have the required flex cables, (Prox flex, Charging port flex, Power Button Flex, Sandwich reballed) plugged in. Other flex cables that are Liquid Damaged.In scenarios where you have the appropriate flexes plugged in, but it still restarts, then you either have: So you have to keep known good flexes on hand at all times, so you don't waste your time troubleshooting with possibly bad flexes. ![]() There are reports of even NEW flexes being bad. It is also a good idea to keep a known good power button flex & charging port flex in your bench, for testing only. When trying to solve for these issues, make sure to replace the appropriate flex with an OEM or Premium flex. So many solutions are just suggestions based on hearsay, rumors or just guesses.įor situations where you don't see the above examples, you'll have to read through the top portion of the panic log & try to decipher what could be the root cause. Diode mode the battery connector pins & compare them to known good boardĮxample of what you'll see in a panic-full file, where when there's a bad prox flex and bad power button flex causing the 3 min restart.Īlso check out which allows you to upload the panic log file & have it analyzed for free.īoth of these tools just give suggestions, which aren't always correct, as there is no official solution list from Apple.Sometimes they can bend out & battery won't make good contact. Sometimes you'll see the battery percentage fluctuate or you'll randomly get a "non-genuine" message.It could require a sandwich reball or a bottom board swap. This means the sandwich board has separated.Make sure all 3 flex cables are plugged in.0x1c0000 - It's the Charging Port and Power Button Flex and Prox Flex.0x140000 - It's the Power Button and Charging Port Flex.0x180000 - It's the Prox Flex and Power Button Flex.Make sure both flex cables are plugged in.0xc0000 - It's the Prox Flex and Charging Port Flex.Diode mode the FPC connectors for any faults.Aftermarket Flexes have a high defect rate Check that no flex is torn, liquid damaged, defective.0x80000 - it's the Proximity Flex Cable.Then you'll want to scan through the text for keywords that may point you to the cause.įor this model, look for where it says "SMC PANIC - ASSERTION FAILED". To find the panic log on the device, go to Settings-> Privacy-> Analytics & Improvements-> Analytics Data-> Scroll down to the files starting with "panic-full." & click on the most recent dated file. This is a file that is generated by the Operating System, to document the fault causing the restart.Īn example of panic log files you'll find in the iPhone when it has been randomly restarting. Solution Identifying the problem īefore you start blindly replacing parts, it's important to try to confirm what is causing the restarting issue by reviewing the Panic Log file. The iPhone will seem to freeze and restart every 2-5 minutes.The iPhone will reboot randomly when using it. ![]()
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