New 16” MBP Random Restarts and LockUps

On my new 16 inch MacBook Pro, when the machine is idle, I get about four random reboots a day. And, when the machine is in use, at least one lock up per day that requires a reboot.


I did not use migration assistant when the machine was set up, it is a fresh install. Hardware check shows no errors… Extremely frustrating.


This is always the message upon each random restart


BAD MAGIC! (flag set in iBoot panic header), no macOS panic log available


Needless to say… This is very frustrating! Anyone else had this issue?

James’s 16" MacBook Pro, MacBook Pro 16"

Posted on Nov 26, 2019 10:15 AM

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Posted on Apr 14, 2020 10:44 AM

Just an update on my progress. My prior MacBook would unexpectedly freeze for 10 seconds, then the fans would go 100% for 5 seconds, and the machine would then power off or restart. I would check the logs after this issue and get a "bad magic" kernel panic. They sent me a brand new replacement. This issue seems to be resolved with a brand new replacement. This is a hardware issue (unless you're having panics due to the most recent version of Catalina). If you're having kernel panics, bad magic issues, or unexpected shut downs/reboots, then I'd recommend to get a replacement as soon as possible. This is the only way to resolve this issue.


I spent countless hours troubleshooting the issue with Apple and sending it out for repair twice. The first repair, they only reinstalled MacOS and updated my T2 firmware. This didn't resolve it. The second repair, they replaced my Touch ID Board and Logic Board. This also didn't resolve the issue. I then requested a new replacement (since I'm still within my warranty). They approved this and were able to send me this brand new replacement. This replacement does NOT have any issues and now the issue is resolved.


Please keep in mind that Apple (US) will only send a replacement after a certain number of repair attempts (usually 2-3 attempts), if you're past the 14-day return date. So please make sure to get started on the repair process and after the second/third repair, ask for a replacement. This is the only way to resolve the issue. It was the only way for me to resolve the unexpected shutdowns and reboots with "Bad Magic" kernel panics. I have read prior that this is the only way others have fully resolved this issue. I hope you all have the same success as me!

213 replies

Dec 24, 2019 10:17 AM in response to wo4w

Hello. It's constantly happening to me too. I'm working on important projects and it just suddenly restarts.

I isolated and disabled any T2 activity (at first I noticed it was very related to any of those processes starting with any security task) and for awhile everything went better (I disabled secure boot, touchid etc..). Beside the T2, from my experience there are some elements that trigger the restarts/freezes:


1) Sleep and wakeup

2) External hardware (monitor and hard drives)

3) Sound hardware/software related operations (in some cases just when I was simply running a audio software when I was setting the hardware preferences it crashed several times in a row, then I disconnected the thunderbolt 3 drives and it didn't crash anymore.. for now)


Just want to say that the Mac is perfect and surely there are no software conflicts. I had these problems right out of the box. I made a clean OS install, and all the softwares and such that I installed were perfectly working the day before on my previous iMac 5k. It took me almost 2 days to stabilise the MBP16 and still it restarts randomly (for the happiness of my 18TB external drives).

All the external hardware is from the latest generation with thunderbolt 3.


I use this Mac to work (I've spent almost 7000euros to buy it) and I can't just go to the Apple Store ad wait for their timing to fix it unless they won't change it with a new one with the same configuration right there (and replacing the internal SSD with the actual one).


I'm very disappointed because this Mac is the latest and the most advanced.. yet we have problems that really recall the amazing period of windows PCs in the 2000s.


Plus, Apple assistance is so focused on their rules that it become very hard to have a real support. Once again. I'm very disappointed. I really hope that someone at Apple will read our comments and contact us one by one to give us the support we deserve since we have built out workflow on their promises and products. It's really becoming too common that when you buy a software or a hardware, as user, you have to face problems instead of working with them!





Dec 24, 2019 11:24 PM in response to AbeOdd

My computer is in the service for 2 weeks now and I have no chance to see it back before new year.

paid 3300€ for something which does not work. The repairing service requested approval for replacement and the answer is yet to be sent by Apple.

nonsense. Im an apple user for 10 years but during the past 2 weeks I really reached a point to change....

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New 16” MBP Random Restarts and LockUps

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