iPhone XS random restarting Panic Full

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iPhone XS

Released September 21, 2018. Models A1920, A2097, A2098, A2100. Available as GSM or CDMA / eSIM or nano-SIM / 64, 256, or 512 GB / Silver, Gold, or Space Gray. (Pronounced "iPhone 10 S.")

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Emre Uyanik @uemre

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Posted: Jun 27, 2022

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iPhone XS random restarting Panic Full

hi, I have an iphone xs 256 GB device. been exposed to steam while in the shower and it has been randomly shutting down for about a month. I did a lot of research. They recommended replacing the charging flex. but I changed the charging flex 2 times and the problem did not go away. it turns off at once, the battery level is not visible and it stutters. then it gets better and turns off and on randomly after 3-4-5 minutes, sometimes 2 hours. I changed the battery, still no results. I am posting the analysis log here please help. It's a very frustrating situation.

🙏🙏🙏🙏🙏

{"bug_type":"210","timestamp":"2022-06-27 22:21:05.00 +0300","os_version":"iPhone OS 15.5 (19F77)","incident_id":"3F177D46-8B26-43B0-94B5-82DCAFC1C9B1"}

{

"build" : "iPhone OS 15.5 (19F77)",

"product" : "iPhone11,2",

"socId" : "0x00008020",

"kernel" : "Darwin Kernel Version 21.5.0: Thu Apr 21 21:50:10 PDT 2022; root:xnu-8020.122.1~1\/RELEASE_ARM64_T8020",

"incident" : "3F177D46-8B26-43B0-94B5-82DCAFC1C9B1",

"crashReporterKey" : "5684e36312f727885c0f9db3fc2ca69dd481b784",

"date" : "2022-06-27 22:21:05.15 +0300",

"panicString" : "panic(cpu 0 caller 0xfffffff019b1d4f8): userspace watchdog timeout: no successful checkins from thermalmonitord since wake\nservice returned not alive with context : is_alive_func returned unhealthy : current 7fffffffffffe, mask 37ffffffffdff, expected 37ffffffffdff. SD: 0 BC: 1 RC: 0 BS: 2, Missing sensor(s): TG0B \nservice: backboardd, total successful checkins since wake (80 seconds ago): 9, last successful checkin: 0 seconds ago\nservice: SpringBoard, total successful checkins since wake (80 seconds ago): 9, last successful checkin: 0 seconds ago\nservice: mediaserverd, total successful checkins since wake (80 seconds ago): 9, last successful checkin: 0 seconds ago\nservice: logd, total successful checkins since wake (80 seconds ago): 9, last successful checkin: 0 seconds ago\nservice: thermalmonitord, no successful checkins since wake (80 seconds ago)\nservice: runningboardd, total successful checkins since wake (80 seconds ago): 9, last successful checkin: 0 seconds ago\nservice: wifid, total successful checkins since wake (80 seconds ago): 9, last successful checkin: 0 secon\nDebugger message: panic\nMemory ID: 0x6\nOS release type: User\nOS version: 19F77\nKernel version: Darwin Kernel Version 21.5.0: Thu Apr 21 21:50:10 PDT 2022; root:xnu-8020.122.1~1\/RELEASE_ARM64_T8020\nKernel UUID: DD447920-A41D-32F1-A34E-92EA889E84E9\niBoot version: iBoot-7459.120.62.0.3\nsecure boot?: YES\nPaniclog version: 13\nKernel slide: 0x00000000100ec000\nKernel text base:

Answer this question I have this problem too

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If the problem is charge flex please advise me how and where to find the best part.

Jun 27, 2022 by Emre Uyanik

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3 Answers

If the problem is charge flex please advise me how and where to find the best part. — Emre Uyanik

daniel @tech_ni Rep: 34.9k 10 23 44 · Answer 1 · 2022-06-27T16:38:13-07:00

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daniel @tech_ni

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download the panic log analyzer and it will show you the possible cause of the crash, https://github.com/waynebonc/iDeviceLogA... . unzip the file, got to lib, net45, then go down to the application and open it

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@tech_ni hi thank you for your answer, I try it. it says there.

“1) charging port

2) battery”

But I changed both of them. still the problem is not solved

Jun 28, 2022 by Emre Uyanik

@Emre Uyanik did you use an original flex pulled from a genuine phone or a copy from a 3rd party supplier

Jun 28, 2022 by daniel

@tech_ni yes I used 3rd party supplier. 2 times

Jul 4, 2022 by Emre Uyanik

@uemre try an original iphones and samsung are funny with 3rd party parts

Jul 4, 2022 by daniel

@tech_ni There is no original iphone. Where can I find an original iphone part?

Jul 15, 2022 by Emre Uyanik

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Chris Stables @imicrosoldering Rep: 50.8k 8 16 101 · Answer 2 · 2022-06-28T18:25:19-07:00

Chris Stables @imicrosoldering

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Posted: Jun 28, 2022

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Randomly shutting down, stuttering and battery level not visible. These signs all point to the battery. I would check the battery FPC under some magnification and make sure none of the pins are pushed into the plastic and that the connector is seating properly with no movement. The battery connectors on the X series can be problematic causing your problem.

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@imicrosoldering yes, I think this is the problem, but I think I need to get professional help in this regard. When I disconnect the battery and plug it back in, the battery status seems normal. but after a while I get the same errors again and it shuts down.

Jul 4, 2022 by Emre Uyanik

@uemre Probably a good idea as you have done everything you can. The first thing a reputable repairer will do is transfer the logic board into a known good housing. This will determine if it is a parts issue or a board problem.

Jul 4, 2022 by Chris Stables

@imicrosoldering Is there a document or video about how this process is done?

Jul 15, 2022 by Emre Uyanik

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