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Released September 21, 2018. Models: A1921, A2101, A2102, and A2104 / Available as GSM or CDMA / eSIM or nano-SIM / 64, 256, or 512 GB / Silver, Gold, or Space Gray (Pronounced "iPhone 10 S Max.")

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after a hard drop iPhone keeps restarting

i did everything factory reset, force restart, dfu mode also i noticed that when on dfu more or recovery mode it doesn't restart here is the crash report (not full)
{"bug_type":"210","timestamp":"2023-09-22 21:01:08.00 +0800","os_version":"iPhone OS 17.0.1 (21A340)","roots_installed":0,"incident_id":"D7AAE269-8E23-4A1C-AC0A-415326DA328C"}

{

"build" : "iPhone OS 17.0.1 (21A340)",

"product" : "iPhone11,6",

"socId" : "8020",

"socRevision" : "11",

"incident" : "D7AAE269-8E23-4A1C-AC0A-415326DA328C",

"crashReporterKey" : "81b6109296dd9ee0f17f2efb33d3d20388bfd110",

"kernel" : "Darwin Kernel Version 23.0.0: Fri Sep 15 13:43:34 PDT 2023; root:xnu-10002.2.12~1\/RELEASE_ARM64_T8020",

"date" : "2023-09-22 21:01:08.72 +0800",

"panicString" : "panic(cpu 2 caller 0xfffffff022034274): userspace watchdog timeout: no successful checkins from thermalmonitord (2 induced crashes) \nservice returned not alive with context : is_alive_func returned unhealthy : current 6ffffffffffff, mask 37ffffffffdff, expected 37ffffffffdff. SD: 1 BC: 1 RC: 0 BS: 2, Missing sensor(s): Prs0 \nservice: backboardd, total successful checkins in 205 seconds: 18, last successful checkin: 0 seconds ago\nservice: SpringBoard, total successful checkins in 60 seconds: 5, last successful checkin: 10 seconds ago\nservice: mediaserverd, total successful checkins in 205 seconds: 19, last successful checkin: 0 seconds ago\nservice: audiomxd, total successful checkins in 205 seconds: 19, last successful checkin: 0 seconds ago\nservice: logd, total successful checkins in 205 seconds: 19, last successful checkin: 0 seconds ago\nservice: thermalmonitord (2 induced crashes), no successful checkins in 205 seconds\nservice: runningboardd, total successful checkins in 205 seconds: 19, last successful checkin: 0 seconds ago\nservice: wifid, total successful checkins in 20\nDebugger message: panic\nMemory ID: 0x1\nOS release type: User\nOS version: 21A340\nKernel version: Darwin Kernel Version 23.0.0: Fri Sep 15 13:43:34 PDT 2023; root:xnu-

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Okay, this looks like a pretty straight-forward one. The magic clue is right here in your panic log.

Missing sensor(s): Prs0

That's the Pressure Sensor associated with the barometric vent at the bottom of the phone. The sensor itself is mounted on the lightning connector flex cable assembly, so replacing that part should get you going again. Unfortunately we don't seem to have that guide here on iFixit, but there's a Spanish site called Nadie Me Llama Gallina that does.

Manuales / Apple iPhone Xs Max / Flex with load connector and lower microphone

If you're interested, the esteemed Alisha (@flannelist) has written an excellent guide to translating panic logs into repairs. Should you run into this sort of situation again, it will be invaluable in figuring out what to do; that's exactly what I did when I saw your post.

iPhone Kernel Panics - iFixit

Good luck; let us know how it goes!

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Thank you for the fast reply, what should i replace you mean the lightning connector flex cable assembly or the pressure sensor only?

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Well, considering you generally cannot buy the pressure sensor alone, i'm pretty sure it is meant that you purchase the lightning connector assembly/flex cable.

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@jjtttzzz Yes, as Nick said, it's the assembly that gets replaced. Here's the one iFixit sells.

iPhone XS Max Lightning Connector Assembly

Replacing the sensor itself would require delicate microsoldering skills and equipment most of us don't have. That's assuming you could even find someone selling the sensor by itself; it may be possible, but I've never looked so I don't know for sure.

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Hello, just an update, its no longer restarting, i just replaced it with another flex tape, thank u guys

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