How to Troubleshoot And Fix iPhone Random Restarts Using Panic Logs

How to Troubleshoot And Fix iPhone Random Restarts Using Panic Logs
Type	Troubleshooting/Diagnostics
Device(s)	Apple Phones
Difficulty	◉◉◌◌ Medium

How to Solve Random Restarts

Summary

iPhones and iPads will restart randomly or every few minutes depending on various scenarios.

Also, each model tends to have it's unique sensors that must be detected by the Operating System, otherwise, it'll restart.

The first step to troubleshooting this issue is to start by testing the problematic board with all known good parts. Meaning, these are parts that have been previously tested & confirmed not to cause restart issues.

Next, would be to check the panic log to see which sensor is not detected. 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.

Then refer to the specific page below for the solution:

Panic Log Solution List

How To Fix an iPhone X That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_X_That_Randomly_Restarts

How To Fix an iPhone XS and XS Max That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_XS_That_Randomly_Restarts

How To Fix an iPhone 11 That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_11_That_Randomly_Restarts

How To Fix an iPhone 11 Pro and 11 Pro Max That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_11_Pro_That_Randomly_Restarts

How To Fix an iPhone 12 Series That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_12_That_Randomly_Restarts

How To Fix an iPhone 13 Series That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_13_That_Randomly_Restarts

How To Fix an iPhone 14 and 14 Plus That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_14_That_Randomly_Restarts

How To Fix an iPhone 14 Pro and 14 Pro Max That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_14_Pro_That_Randomly_Restarts

How To Fix an iPhone 15 and 15 Plus That Randomly Restarts:

https://repair.wiki/w/How_To_Fix_an_iPhone_15_That_Randomly_Restarts

How To Fix an IPhone 15 Pro and 15 Pro Max That Randomly Restarts:

How To Fix an iPhone 15 Pro That Randomly Restarts

How To Fix an iPhone SE 2020 That Randomly Restarts https://repair.wiki/w/How_To_Fix_an_iPhone_SE_2020_That_Randomly_Restarts

How To Fix an iPhone SE 2020 with No Touch and/or 3 Min Restart (Mic1 Problem) https://repair.wiki/w/How_To_Fix_an_iPhone_SE_2020_with_No_Touch_and/or_3_Min_Restart_(Mic1_Problem)

Common Panic Log Messages

Also, here are some common panic log faults, that may help you narrow down the issue:

iPhone 12 series and older:

mic1 - charging port flex (SE 2020 could be a board issue)|

mic2 - power button flex

prs0 - charging port flex

tg0b - battery, battery connector or battery data line

ans2 - NAND related

iPhone 13 series:

0x800 - charging port flex

0x1000 - proximity flex

0x1800 - charging port flex & charging port flex

0x400 - sandwich separation

iPhone 14 & iPhone 14 Plus:

0x400000 - Wireless Charging Flex (Back Glass)

0x100000 - Charging Port Flex

0x500000 - Check the taptic engine as well as the charging port flex or a communication problem with the battery

0x200000 - Proximity Flex Cable

iPhone 14 Pro & iPhone 14 Pro Max:

0x80000 - proximity flex

0x40000 - charging port flex

0x10000 - power button flex

0x20000 - sandwich separation

iPhone 15 & iPhone 15 Plus:

0x200000 - Wireless Charging Flex (Back Glass)

0x80000 - Charging Port Flex

0x100000 - Proximity Flex Cable

iPhone 15 Pro & iPhone 15 Pro Max:

0xa1 - battery

0x300000 - Charging Port Flex

0x400000 - Wireless Charging Flex

0x700000 - Charging Port + Wireless Charging Flex