The customer said he had originally had the screen replaced at a mall kiosk and it worked well for a couple of months but one day it would not turn on. What I actually found was the phone was turning on but the screen had failed and was not turning on. I installed a new screen and all seemed well. I gave it back to the customer in seemingly 100% working condition. A few days later he brought it back to me and said it was rebooting every few minutes.

1. I tried forcing an update - no change, still rebooted after a few minutes.
2. I tried a DFU restore - no change, still rebooted after a few minutes.
3. I googled the issue and found numerous reports about issues with the charge port causing the phone to restart every 3 minutes. I checked and confirmed the phone would reboot after 3 minutes consistently. So I ordered a new charge port flex.
4. I first tried to temporarily disconnect the original flex in the phone and temporarily connect the new bare charge port flex. Voila, the phone stayed running beyond 3 minutes.
5. I disassembled the phone, removed the original charge port flex, reinstalled the new charge port and reassembled the phone. Initially the phone seemed to be fixed. But after several hours I noticed it starting to go back to the 3 minute reboot cycle again. Grr. Maybe I damaged it during installation I thought.
6. I ordered another new part and repeated step 4 and 5 but with greater care. Again, with the new part installed the phone seemed to fixed. This time I set the screen to stay on and started a stop watch. The phone stayed on for over 3 hours so I left it overnight.
7. In the morning, the phone was BACK TO RESTARTING every 3 minutes!!!
8. For fun I disconnected the 2nd new flex that was installed in the phone and connected one of the other charge ports that I had swapped out. With only the charge port by itself connected the phone still reboots. Conclusion - the flex is getting damaged somehow just by connecting it to the phone (my theory anyway).
9. Some posts on here suggested a DFU restore fixed this issue - in my case, it does not. Tried it. No difference.

I dug into the analytics logs and using 3U Tools see that every time it reboots it logs a “Panic CPU x caller” entry.

Here is the detailed text from one of these entries. Has anyone seen this? What can I try next? I’m hesitant to install a third charge port but do have one if need be.

Thanks in advance for your help,

Larry

——————————-

{"bug_type":"210","timestamp":"2021-11-06 21:28:52.00 -0600","os_version":"iPhone OS 15.1 (19B74)","incident_id":"41C3AD2D-4165-42EE-9166-C156236A84EC"}

{

"build" : "iPhone OS 15.1 (19B74)",

"product" : "iPhone10,6",

"kernel" : "Darwin Kernel Version 21.1.0: Wed Oct 13 18:16:58 PDT 2021; root:xnu-8019.42.4~1\/RELEASE_ARM64_T8015",

"incident" : "41C3AD2D-4165-42EE-9166-C156236A84EC",

"crashReporterKey" : "d6ac110a82cef07ecd55c818d6c8d79130b244dc",

"date" : "2021-11-06 21:28:52.45 -0600",

"panicString" : "panic(cpu 1 caller 0xfffffff02941f0f4): userspace watchdog timeout: no successful checkins from thermalmonitord since load\nservice returned not alive with context : is_alive_func returned unhealthy : current 7bfffffffff, mask 67fffffffff, expected 67fffffffff. SD: 1 BC: 0 Missing sensor(s): mic1 \nservice: backboardd, total successful checkins since load (180 seconds ago): 19, last successful checkin: 0 seconds ago\nservice: SpringBoard, total successful checkins since load (168 seconds ago): 17, last successful checkin: 0 seconds ago\nservice: mediaserverd, total successful checkins since load (180 seconds ago): 19, last successful checkin: 0 seconds ago\nservice: logd, total successful checkins since load (180 seconds ago): 19, last successful checkin: 0 seconds ago\nservice: thermalmonitord, no successful checkins since load (180 seconds ago)\nservice: runningboardd, total successful checkins since load (180 seconds ago): 19, last successful checkin: 0 seconds ago\nservice: wifid, total successful checkins since load (180 seconds ago): 19, last successful checkin: 0 seconds ago\nDebugger message: panic\nMemory ID: 0x6\nOS release type: User\nOS version: 19B74\nKernel version: Darwin Kernel Version 21.1.0: Wed Oct 13 18:16:58 PDT 2021; root:xnu-8019.42.4~1\/RELEASE_ARM64_T8015\nKernel UUID: 13E2F321-3388-3B9E-9D68-75E2081A4A02\niBoot version: iBoot-7429.42.2\nsecure boot?: YES\nPaniclog version: 13\n

⟐ Commented Ekim 16, 2025 at 23:09 GMT-7

My iPhone x got water damaged by failing in water

After the phone filled in the water, it was working fine but later on I found out that it did not accept charging anymore and I could not turn it on again

I don't know what my chances.

Are you guys able to fix this kind of issues?

Thanks

⟐ Commented Nisan 11, 2020 at 14:51 GMT-7

⟐ Comment deleted Mayıs 19, 2019 at 7:05 GMT-7

⟐ Answered Temmuz 06, 2024 at 10:22 GMT-7

⟐ Answered Ağustos 01, 2024 at 17:48 GMT-7

PS - the phone works, I can feel the vibrations when i tap the buttons in the lock screen.

⟐ Commented Eylül 24, 2023 at 22:38 GMT-7

1 monitored services unavailable

com.apple.thermalmonitord unavailable (or words to that effect)

I assume from that there is a heat/thermal sensor in the phone that i’ve maybe not connected or another part that needs replaced. Any pointers to where that might be and what part I should try replacing?

Thanks!

⟐ Commented Temmuz 26, 2021 at 9:44 GMT-7

I don’t think anything went inside the lens, but it’s extremely blurry when I try to take a picture.

Also, there is a tiny black hole on the lens, so I am wondering if there is a way to reach glue that went down there as well.

I’ve heard of using nail polish remover, but I am afraid of how that will react with the lens, possibly removing some sort of protective layer or something. I’m not entirely sure how the lens relates to the actual camera.

Is there a way to get rid of most, if not all, of the superglue without damaging the lens?

I believe that the glue was gorilla super glue.

Thanks

⟐ Answered Ağustos 19, 2025 at 14:49 GMT-7

⟐ Answered Ağustos 24, 2023 at 10:57 GMT-7

⟐ Answered Mart 29, 2023 at 13:18 GMT-7

Today I had changed the back housing. After that the iphone starts to restarts every 3 minutes and noticed that there is heat below the camera, which obviously the motherboard.

I disassemble everything for testing, I just used the power button and the 3 LCD cables. But still keeps restarting. I come into the conclusion that it must be the motherboard.

Did I miss something here? I had reset the phone but didn’t fix the issue. I could not update the iphone to the latest update which was released last week I think due to the phone keeps restarting and didn’t let me update it.

Thank you for your support

⟐ Commented Ağustos 02, 2021 at 9:07 GMT-7

⟐ Answered Temmuz 01, 2020 at 10:39 GMT-7

I read the error code but I don't know what it means, can someone guide me where is the problem?

Panic code

{"bug_type":"210","timestamp":"2023-06-28 03:14:09.00 -0700","os_version":"iPhone OS 16.5 (20F66)","roots_installed":0,"incident_id":"D6DCF4B5-6A5E-446E-B318-FC8AB236FECB"}
{
  "build" : "iPhone OS 16.5 (20F66)",
  "product" : "iPhone10,3",
  "socId" : "8015",
  "socRevision" : "11",
  "incident" : "D6DCF4B5-6A5E-446E-B318-FC8AB236FECB",
  "crashReporterKey" : "c27374456cd62022bf606fff6bdb02803499bb8a",
  "kernel" : "Darwin Kernel Version 22.5.0: Mon Apr 24 21:10:12 PDT 2023; root:xnu-8796.122.4~1\/RELEASE_ARM64_T8015",
  "date" : "2023-06-28 03:14:09.29 -0700",
  "panicString" : "panic(cpu 2 caller 0xfffffff0105e0f54): AOP PANIC - No pulse on 0x109b248 - main(4) - \nuser handlers:\ntraceBuffer : \n280000008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140008f0140\nNo pulse on

⟐ Answered Nisan 08, 2024 at 1:18 GMT-7

Regards, Patricio.

⟐ Commented Ağustos 15, 2023 at 8:29 GMT-7

It has had the following to rule out:

Battery and 3 replacement ports. Each flex cable was unplugged one by one to troubleshoot, even with the following unplugged it occurs: Screen Flex (Both), Face ID/Front Cam Flex (All 3), Antenna Flex (Wifi), Lower Antenna, Power Button Flex/Flash & Volume Button Flex & Charging Flex.

I have tried a replacement screen and still occurs. I have checked all the FPC under microscope and very clean and tidy. It cannot be the port surely as it occurs even when not plugged in.

⟐ Commented Haziran 22, 2022 at 14:52 GMT-7

what might be the problem?

Do you think my screen is damaged?

⟐ Answered Haziran 04, 2020 at 9:41 GMT-7

Does anybody know perhaps where to buy that? I know apple wouldn’t put it in if it wasn’t necessary to some degree.

⟐ Answer deleted Ağustos 19, 2019 at 4:40 GMT-7

⟐ Answer accepted Mayıs 29, 2022 at 7:14 GMT-7

I had my iPhone X ear piece speaker stop working the other day. I bought a replacement Earpiece Speaker and Sensor Assembly for my model phone off of ifixit, and just replaced it today. After swapping it, turning the phone on, I got the message pop up saying “Unavailable to activate face ID on this phone”. I then go into my face ID settings, attempt to set it up, but then get the message “Face ID is not available, try setting up face ID later”. The ear speaker is now working fine, but face ID is not. I opened it back up, verified all the connections are good, re-seated all of them, checked the sensors, made sure they were all clean, no prints or dirt, but still no luck. Could the replacement I got have a bad sensor? Anybody have any other suggestions at all?

Thanks!

⟐ Commented Aralık 29, 2025 at 17:30 GMT-7

I switched the backglass and the frame but since then my iPhone keeps restarting every 5 minutes. The new backframe arrived with parts like charging port, taptic engine. I’ve kept them inside. The crash report of analytics is:

{"bug_type":"288","timestamp":"2019-10-13 18:42:47.85 +0200","os_version":"iPhone OS 13.1.2 (17A861)","incident_id":"8C446476-CA19-47A0-8F74-5803B0A9A4A8"} { "build" : "iPhone OS 13.1.2 (17A861)", "product" : "iPhone10,6", "kernel" : "Darwin Kernel Version 19.0.0: Tue Sep 3 21:52:10 PDT 2019; root:xnu-6153.2.3~2\/RELEASE_ARM64_T8015", "tuning" : { }, "incident" : "8C446476-CA19-47A0-8F74-5803B0A9A4A8", "crashReporterKey" : "413cb2f10b0936293a261e8ec514288966bd25a5", "date" : "2019-10-13 18:42:47.85 +0200", "reason" : "(1 monitored services unresponsive): checkin with service: com.apple.thermalmonitord returned not alive with context:\nis_alive_func returned unhealthy : current 1ffc73fffffffff, mask 67fffffffff, expected 67fffffffff\nno successful checkins since load (130 seconds ago)", "frontmostPids" : [ 58

⟐ Answered Haziran 24, 2022 at 10:11 GMT-7