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MacBook Pro 16 2019 10.15.4 Kernel Panic / Reboot When Plugged In -- Help!

After I I've updated to the latest release of macOS, I've experienced a weird bug every time I leave my laptop closed (still on) for more than a couple hours and plugged in.


It reboots and states the message/log below.


Not sure what they changed but this did NOT happen before the update.


Things I've tried:

  • SMC Reset
  • PRAM Reset
  • Soft Reset
  • Hard Reset


I still experience this issue everyday.

MacBook Pro 16", macOS 10.15

Posted on Mar 28, 2020 1:48 PM

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Question marked as Top-ranking reply

Posted on Apr 17, 2020 1:41 AM

I recently bought a brand-new MBP 16' too and I experienced several crashes each day even though I had update it to the lastest version of MacOS. I am also very disappointed about Apple's software quality.

What helped was the following:

  • Reset System Management Controllers (SMC) according to the instructions given here (sorry, just the German link; please look for the corresponding English version)

https://support.apple.com/de-de/HT201295

  • Additionally I reset the NVRAM or PRAM even though I don't really know if was necessary:

https://support.apple.com/de-de/HT204063

  • Additionally I turned off power nap in the energy control.

I did all steps after the latest update of MacOS.

Since then no more crashes.

Let uns know if this help for you too.

Stay healthy!



325 replies

Aug 29, 2020 4:38 AM in response to iTimC21

I'd just like to add my own similar experience. MacBook Pro 16, bought in March 2020 so no chances of return, but I'm having this same issue - but irregularly. One day it'll go to sleep and wake up fine. Next day it won't. I can't consistently reproduce the error. I've have numerous calls with Apple (some useless, some escalating it to the senior team. I've done countless PRAM, SMC and all those other resets. They've done a bunch of diagnostics.

Status now? Apple have said I have to partition my Mac, a clean partition no 3rd party software etc. So like OP, Apple are making me do the legwork to work this out. If this option doesn't work, I'll have to wipe my Mac. It's been a nightmare and after spending all this money, I hate this MBP. No updates (10.14 through to 10.15.6) have helped. (Though 10.15.5 did help with a massive battery drain issue).


Rant over, but from my research loads of people have had this issue (across different models and OS versions) yet Apple just make the users do the leg work to fix it/work out the issue.

Aug 29, 2020 5:37 AM in response to CrunkSouljah

I bought my MacBook Pro 16 inch in January 2020. I successfully argued my case in July that Apple created the kernel panic issue with macOS 10.15.4. My MacBook Pro 16 inch was running beautifully until the 10.15.3 to 10.15.4 upgrade. I also went through multiple iterations of resetting PRAM, SMC, wiping the hard drive, disk diagnostics, hardware diagnostics, removing all user installed applications, etc. I didn't want to send my MacBook Pro for repair so the engineers could use it for testing to determine how they created the problem. All of that type of testing should have been done before the 10.15.4 OS release. I wouldn't waste your time - none of the iterations I mentioned fixed anything. There are also threads sharing that MBP 16" machines are coming out of the box with the kernel panic issue - totally unacceptable. My MacBook Pro 16 inch was returned for a full refund in July / August. I am now the proud owner of a 27 inch iMac - not a single kernel panic. Apple turned a very bad situation into a good one. I am sad for those that are still dealing with this issue and disappointed that Apple hasn't issued a general recall and stopped shipping new MBPs until the problem is identified and fixed.

Aug 29, 2020 11:50 AM in response to Step89

The problems I reported previously on this thread with my 2020 13" MBP have all disappeared since I binned the Belkin Thunderbolt 3 Express Dock HD and replaced it with a CalDigit TS3 Plus. I now have 15 ports of connectivity, including optical out.


FWIW, I have Power Nap enabled on power and battery with no issues.


This machine seems fairly robust and I've not experienced a kernel panic for over a week now (this includes warm docking and undocking via the single Thunderbolt 3 cable).


Hope you all get your MBP 16"s sorted out.


Steve

Oct 16, 2020 5:27 AM in response to iTimC21

I was having this problem too, to the point that sometimes I couldn't even log in, and the MacBook only worked properly as a Windows laptop using Bootcamp! If I was able to log in, then soon afterwards it would panic, fans would spin up and it would restart with all the usual error messages.


After several trips to the genius bar, they replaced both the logic and touch ID boards, and everything is working perfectly.


It wakes from sleep as it should, and I am having no kernel panics whatsoever.


So it appears that replacing the logic board and touch ID boards was the answer, and will probably be the answer for everyone experiencing this, which seems like quite a lot of you.


I do believe there is a hardware issue on a number of these 16" MacBooks, and without telling us truthfully that there was, Apple are secretly replacing these with a new hardware revision, which fixes the problem. Whatever works I say, but a bit of honesty would be good. Happy that mine is working as it should - hooray!

Oct 16, 2020 5:31 AM in response to ShaneZ76

Thanks for sharing Tim. After several calls with senior Apple engineers and wiping my drives, I'm being sent to the Genius bar. So it's good to know about the logic board and Touch ID - I'll mention this when I go.

Like you say, it would be great if Apple were honest about this, with so many people having issues with the new MBP 16".

Enjoy your working MBP!

Zoe

Oct 16, 2020 5:42 AM in response to ShaneZ76

Thanks for this post. i bought mine about 6mo ago, and i just barely ise ot for important atuff. Only use it when im alone and no clients around, because i know how unreliable this 4500 dollar machine is. This is a replacement to my 15inch macbook so i went thru so many calls and logic board on my 15inch one that when it got replaced and i got this worst computer that was supposed to be better i just settled and have been jist hiding it from anyone who it would embaresse me with the qeird hickups i get from it. 98% of the times ita just the sleep awake panic, but from time to time mine just straight up turns off out od no where .. lol(laughing so i wont cry) ... Anyway in 2 weeks i ll have to have a powerful laptop on set and i ll have to use this ... Whats a genius bar? I need to get mine fixed, should i jiat start calling apple right now and ask them to ssnd the box so i can send my computer and thats what the genius bar is?

I really need to get thos mbp fixed in the next 2 weeks

Oct 16, 2020 8:58 AM in response to AlbertoAtl

Yes Genius Bar is what they call themselves in-store at the back where they help you - you go to ‘the bar’, and the staff are the Apple Geniuses that run it. Apple terminology. If you can get an appointment to take it direct to a local store then they will take it from you and book it in for repair - hopefully you’d get it back within a week if they have the replacement parts in stock. I’m in the UK, so maybe if you’re not then stores may be closed and you’ll have to order a box. They will replace the logic etc boards if kernel panicking, this is their standard fix if wiping it doesn’t work (which it clearly doesn’t from personal experience and no doubt yours / everyone’s!)

MacBook Pro 16 2019 10.15.4 Kernel Panic / Reboot When Plugged In -- Help!

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