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Announced on October 13 and released October 23, Apple's flagship smartphone for 2020 features a 6.1" OLED display, a triple-lens rear camera system with LiDAR, and 5G. Successor to the iPhone 11 Pro.

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iPhone 12 Pro restarting everytime it's left to go to sleep

I have an iPhone 12 Pro that I’ve had since release (2.5 years) and it’s off AppleCare unfortunately. It’s been crashing when idle, to prevent it from crashing I have to have music playing constantly. When it does crash it will be bricked for anywhere from 5 mins to two hours. Sometimes forced reset works sometimes it doesn’t. Tried a restore, tried a DFU restore, reset up iPhone from scratch. Apple Store told me to pay $600 CAD for a back unit replacement but they weren’t 100% that that would fix it. I removed the sim and went e-sim and that fixed it for about 45 minutes before it started again.

Reset counter log:

{"os_version":"iPhone OS 16.5.1 (20F75)","bug_type":"115","timestamp":"2023-07-04 23:16:05.00 -0700","name":"Reset count","roots_installed":0,"incident_id":"86B9DEE6-1004-47C7-8864-FC79497CC754"} Incident Identifier: 86B9DEE6-1004-47C7-8864-FC79497CC754 CrashReporter Key: e9ee1cc9517feb23ea9192e05f55c159bd16495c Date: 2023-07-04 23:16:05.57 -0700 Reset count: 0 Boot failure count: 1

Boot faults: rst btn_rst,btn_seq_reset wdog,reset_in_1 sochot,reset_in_3

Boot stage: 0x50 Boot app: 2681261667 socId: 8101 socRevision:

Panic base log:

{"bug_type":"210","timestamp":"2023-07-04 02:54:19.00 -0700","os_version":"iPhone OS 16.5.1 (20F75)","roots_installed":0,"incident_id":"A24FFBBD-AE82-49D8-88C9-FCA2E0BEFBC5"} { "build" : "iPhone OS 16.5.1 (20F75)", "product" : "iPhone13,3", "socId" : "8101", "socRevision" : "11", "incident" : "A24FFBBD-AE82-49D8-88C9-FCA2E0BEFBC5", "crashReporterKey" : "d6e60af9641022e05aada86a0c224793b6dcb83c", "kernel" : "Darwin Kernel Version 22.5.0: Thu Jun 8 17:13:54 PDT 2023; root:xnu-8796.122.5~1/RELEASE_ARM64_T8101", "date" : "2023-07-04 02:54:19.07 -0700",

"panicString" : "Unexpected SoC (system) watchdog reset occurred during sleep/wake transition",

"panicFlags" : "0x0", "bug_type" : "210", "foregroundAppHash" : "2681261667", "repairStatus" : "2", "binaryImages" : [] }

And the important part of the panic full log:

{"bug_type":"210","timestamp":"2023-07-04 01:36:08.00 -0700","os_version":"iPhone OS 16.5.1 (20F75)","roots_installed":0,"incident_id":"1D753E8E-40C0-408C-8EEE-D997B43EB392"} { "build" : "iPhone OS 16.5.1 (20F75)", "product" : "iPhone13,3", "socId" : "8101", "socRevision" : "11", "incident" : "1D753E8E-40C0-408C-8EEE-D997B43EB392", "crashReporterKey" : "d6e60af9641022e05aada86a0c224793b6dcb83c", "kernel" : "Darwin Kernel Version 22.5.0: Thu Jun 8 17:13:54 PDT 2023; root:xnu-8796.122.5~1/RELEASE_ARM64_T8101", "date" : "2023-07-04 01:36:08.47 -0700",

"panicString" : "panic(cpu 0 caller 0xfffffff027ca2610): "port enable failed: 0xe00002d6" @AppleMultiFunctionManager.cpp:1657\nDebugger message: panic

\nMemory ID: 0xff\nOS release type: User\nOS version: 20F75\nKernel version: Darwin Kernel Version 22.5.0: Thu Jun 8 17:13:54 PDT 2023; root:xnu-8796.122.5~1/RELEASE_ARM64_T8101\nFileset Kernelcache UUID: 84B1F97A4EBB4332AE10EC38FF4B611D\nKernel UUID: 0450791C-9E84-3E6E-9611-412EC38EB3F7\nBoot session UUID: 1D753E8E-40C0-408C-8EEE-D997B43EB392\niBoot version: iBoot-8422.122.1\nsecure boot?: YES\nroots installed: 0

I’m in Canada so if anyone knows Canadian consumer law I’d love to write a letter

Answer this question I have this problem too

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Write a letter? To who? If it's never had one I'd try a new battery.

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Battery is at 92%

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While I can somewhat explain what's happening, there's not a lot of information out there about why it's happening. In your case a timer is going off that's never supposed to; the OS is set up to periodically reset that timer so it doesn't. This is a little different though, as the timer is being triggered not by elapsed time but rather by the sleep/wake transition.

You're right that the port enable failure is a vital clue, but unfortunately it's only useful for Apple; they keep that sort of information close to the vest, so for the rest of us there's no way of knowing what that port is. @flannelist may have some knowledge of the AppleMultiFunctionManager, but unless you've actually worked at Apple again they don't disclose that sort of information.

Regarding the back unit replacement, did you see the other person on Reddit who said they had the same problem that started after they did a back housing and screen replacement?

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I haven’t seen that post, but if it’s a trend with back unit replacements it’s a step closer in finding a solution! Do you have a link?

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@iphone12restart Yes, I can provide a link, but it was in a response to another post similar to yours and what information I gave was the sum total of what they said. Here you go.

https://www.reddit.com/r/ios/comments/xt...

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