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

Jan 12, 2020 2:49 PM in response to AbeOdd

I tried. I simply detached the monitor and the Mac went black. After few secs it restarted... Of course, even if I don't think it could really affect the balance of the OS or Hardware, I don't have any google software installed.


It would have been weird if Apple could control our Mac and fix things without any update. I had anyway some hope for few minutes but no.. I'll be forced to keep my Mac always on... no sleep etc... Thanks again Apple for not having contacted us (because your assistance failed in the first place), people who have spend thousands of dollars/euros and in trouble because of your not functional computers.

Jan 14, 2020 4:44 PM in response to Vii1108

It sounds like your problem was easily reproduced from a warm restart. I would think Apple engineers should be able to figure out the root cause of the failure on your unit fairly easily. The tough problems to trouble shoot are the intermittent problems that are more difficult to reproduce.

Let's hope you replacement unit works as it was designed to. Good luck.

Jan 15, 2020 11:47 AM in response to wo4w

have seen this issue occur exactly the same 1 time so far. it occurred as machine woke from sleep and i was plugging things into it. besides power and network i also plugged in an encrypted USB drive for Time Machine backup. I'll keep an eye out. Wish I could find more of a log. I do see reports of it happening on older machines, but this one is latest model with a pretty clean OS on it.

Feb 11, 2020 9:43 AM in response to virginiaisformacs

Sorry I can't relate to that other thread you posted because my 16" MBP doesn't experience any lockups and freezing. I'm running Final Cut Pro X to edit by work videos and I'm editing several hours throughout the day without a single crash. Yes, right now is a problem with long delays ordering a BTO configuration due to the Coronavirus in China.

Just out of curiosity why didn't you simply post in that thread rather than create a new one with the same issue? The moderators will merge will post when there are too many of the same threads.

Feb 11, 2020 10:13 AM in response to DPJ

Mainly at this point, my purpose behind posting and commenting on these threads is because Apple needs to see and recognize how major an issue this is, and not just having retail employees ask “Wow, did you know that’s our brand new product? What did you do to break it already?” It’s really aggravating having Apple assume that your hardware is fine because it’s a new product and a quick in-store diagnostic doesn’t show broken hardware, regardless of having major repetitive system-down issues that are impairing working professionals who paid top dollar for flagship equipment they’re counting on.

Feb 11, 2020 10:23 AM in response to virginiaisformacs

As far as the issue being "major" as you state that may not be seen the way you see it. It would definitely need to be a great deal of people (far more than a few on forums) experiencing this such as the keyboard debacle in order for it to be considered major. Since my 16" MBP is working perfectly then it's obviously not affecting everyone's machine.


I will say this lastly, I am sorry if you think the Apple Support Forum is watched over by Apple engineers. It's not. Too many people here mistaken this simply because it's on Apple's website. This is a community forum that is no different than Macrumors, 9 to 5 Mac, Reddit and the rest. As a community people here help each other but making a stance for Apple to notice is not gonna happen on this forum. You will need to address Apple directly. They are not reading these forums.

Feb 24, 2020 6:45 AM in response to pdfi

Same here, paid for memory upgrade too. I cannot perform any operation that requires graphics or open any adobe or other photo / video app without the machine freezing temporarily or permanently or having what seems like some sort of kernel attack then rebooting. Started happening right out of the box....And continues one month later. I hope I can rerun it. I paid for Apple care too. Good $3000+ computer for email and browsing I guess. I wish I had come across this thread prior to buying.

Mar 11, 2020 5:09 PM in response to Drakarced

Right but that's why I asked you. You stated that their one-year warranty says you can exchange it for a refund of your purchase price if they are unable to repair, as you said that you had trouble getting Apple to fix your issue. So my question still stands, why not take it to Apple to get your refund?

Mar 11, 2020 5:16 PM in response to DPJ

That’s a good question and I’m honestly not sure why I haven’t tried for this yet. I’m generally curious if anyone else has been able to get a refund in a similar situation due to the warranty. Although I haven’t attempted this yet, it’s my next step if the issue isn’t resolved after this most recent repair (which it’s probably not). I’ll comment here any updates and what ends up happening.

Mar 31, 2020 2:44 PM in response to Drakarced

I spoke too soon. I received my repaired 2019 MacBook Pro 16" back on March 11th. It didn't have any issues until today. It just unexpectedly shut down on me a couple hours ago. Looks like it's going back in for repair... I'm tired of dealing with this. This is my first MacBook (I used to have Windows laptops) and it's not a good experience at all. I never had issues with my prior laptops because I always bought good quality higher priced products. I felt that Apple always has good quality products but this MacBook definitely has a hardware issue. I've spent countless hours with Apple and it's getting tiresome. I'm now starting to consider moving away from the Apple environment due to my recent experiences. After this second repair, we'll see what happens. I'll update you all as I get more information.

Apr 1, 2020 10:48 AM in response to wo4w

wo4w wrote:

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?



7 pages deep and no word from the OP on the situation here—resolved(?)

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New 16” MBP Random Restarts and LockUps

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