iPhone 16 running on 18.0.1 runs into Kernel Panics, happened 2 times since I bought the phone.

My iPhone 16, has run in Kernel Panics 2 times in the last few weeks since I bought the phone, I checked the system analytics in the phone and noticed 2 panic files, then I did some digging into these .ips files with AI I found out this,


Summary of the Issue:

The panic was triggered by a component called EXBrightComponent (likely related to screen brightness) during its initialization. The error message "[EXBright] Invalid input (start=1120618203827 end=1120618151936)!" indicates that the component received incorrect time values (start time being after end time), leading to the fatal error.

What Happened:

  1. Invalid Time Input: The EXBrightComponent, responsible for managing screen brightness, was being initialized. It received two time values, a start time and an end time, that were logically inconsistent. The start time was actually after the end time.
  2. Fatal Error: This invalid input caused a fatal error within the EXBrightComponent. The component couldn't proceed with its initialization because the fundamental logic of its operation was violated.
  3. Kernel Panic: Because this error occurred within a low-level system component (an "exclave" component, meaning it runs in a somewhat isolated area for security), the entire operating system was affected. The kernel (the core of iOS) detected this unrecoverable error and initiated a panic, causing the phone to crash and reboot.

Key Details from the Log:

  • Bug Type 210: This is the general code for kernel panics.
  • iPhone OS 18.0.1 (22A3370): The specific iOS version running on your phone. This is helpful for Apple in diagnosing the issue.
  • Exclaves: These are isolated memory regions where certain system components run to enhance security.
  • Invalid input (start=..., end=...): The root cause of the panic – incorrect time values being passed to the brightness component.
  • SecureRTBuddyProxy: A kernel extension related to display brightness and display control that appears in the backtrace. This extension might be involved, although the primary issue originates from EXBrightComponent.
  • EXBrightKext: Another kernel extension related to display brightness.

What to Do:

  1. Software Update: Ensure your iPhone is running the latest version of iOS. Updating often fixes bugs, and Apple might have already addressed this one.
  2. Monitor for Recurrence: If the panic happens again, especially under similar circumstances (e.g., adjusting brightness), it indicates a persistent software issue.
  3. Contact Apple Support: If the problem continues, contact Apple Support. The panic log provides valuable information they can use to diagnose and resolve the issue. They might suggest a restore as a next step.


Now I've updated my iPhone to 18.1, my concern here is that even though this seems to be a software related issue I didn't find any details related to this in apples iOS 18.1's bug fixes page, so I'm worried this might be a hardware issue if it is then I need suggestions to what to do next? do I go back to the store and demand a new piece? what are my options here? I am a dev too, so this clearly does seem like a software related issue, but I'm no expert. Please help out any suggestions are welcome. I'm a little sceptical to attach the entire .ips file not sure if it contains any PII information, its a pretty huge file. I hope the summary helps though.


iPhone 16, iOS 18

Posted on Oct 31, 2024 12:00 AM

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10 replies

Dec 9, 2024 6:31 AM in response to xpeng24

Apple iOS 18.2 public release is rolling out around the world in many (all?) countries today. I watched a video from someone in Australia an hour ago and he’d installed the update and reported that it resolved many of his issues. The article below explains how to update. The release time in your area may not have occurred yet. You will just need to check the update option in your iPhone.


Update iOS on iPhone

Nov 11, 2024 2:16 AM in response to Jeff Donald

No the issue is still there, i'm running the latest version 18.1, I've switched to US English and Apple intelligence is enabled, it says bug type 211, and randomly restarts, it's totally unexpected and sudden, I could just be listening to some music and it restarts. I don't do any heavy stuff either, I either watch some Netflix or listen to spotify. Could this be a Hardware issue?

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iPhone 16 running on 18.0.1 runs into Kernel Panics, happened 2 times since I bought the phone.

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