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nkl984

macrumors member
Original poster
Oct 30, 2020
35
5
Hello everyone! Can someone please help me explain this crash on my iMac?
My computer restarted today after going to sleep immediately.
I'm using iMac Pro with Mojave 006 latest and I have to mention that I previously installed Big Sur to have the updated firmware version 18P2561 because in the old firmware version 17P6610 I got the ""Your computer was restarted because of a problem" dialog box.

Attached the crash text file I've got please help:

{"caused_by":"macos","macos_version":"Mac OS X 10.14.6 (18G6042)","os_version":"Bridge OS 5.0.1 (18P2561)","macos_system_state":"running","incident_id":"BE4A9263-9893-4EAA-85E2-9E1208FF601E","timestamp":"2020-12-11 13:31:48.00 +0000","bug_type":"210"}
{
"build" : "Bridge OS 5.0.1 (18P2561)",
"product" : "iBridge2,1",
"kernel" : "Darwin Kernel Version 20.1.0: Fri Oct 30 20:40:35 PDT 2020; root:xnu-7195.50.7~1\/RELEASE_ARM64_T8010",
"incident" : "BE4A9263-9893-4EAA-85E2-9E1208FF601E",
"crashReporterKey" : "c0dec0dec0dec0dec0dec0dec0dec0dec0de0001",
 

Attachments

  • crash.txt
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sashavegas

macrumors regular
Jul 11, 2018
120
85
if you used Big Sur befor and have T2 chip, the Big Sur updated its firmware and even you install back Mojave, firmware stay not downgrated. The only way to donwgrade it using Configurator
follow this link

this one more details
 

nkl984

macrumors member
Original poster
Oct 30, 2020
35
5
if you used Big Sur befor and have T2 chip, the Big Sur updated its firmware and even you install back Mojave, firmware stay not downgrated. The only way to donwgrade it using Configurator
follow this link

this one more details
Hi Sasha! Thanks for the reply. The firmware upgrade is good because now I got rid of the “your computer was restarted because of a problem”, I really dont want to downgrade the firmware. I was wondering if someone knows how to read this report to see what caused this restart.
 

msephton

macrumors 6502
Jan 6, 2004
456
197
United Kingdom, Europe
There's a whole thread on this: https://forums.macrumors.com/thread...2.2228812/page-19?post=29353176#post-29353176

The solution is to:
1. install Big Sur to an external drive (64GB or larger)
2. warning: do not install it on a partition, container, etc. it will hose your system!
3. no need to even boot into Big Sur
4. this will update your T2 firmware and fix the bug

or wait as rumour has it update 2020-007 will contain T2 firmware.
 

nkl984

macrumors member
Original poster
Oct 30, 2020
35
5
There's a whole thread on this: https://forums.macrumors.com/thread...2.2228812/page-19?post=29353176#post-29353176

The solution is to:
1. install Big Sur to an external drive (64GB or larger)
2. warning: do not install it on a partition, container, etc. it will hose your system!
3. no need to even boot into Big Sur
4. this will update your T2 firmware and fix the bug

or wait as rumour has it update 2020-007 will contain T2 firmware.
Hi msephton!

I have already installed big sur and updated the firmware to 18P2561 and immediately after that I have reverted my mojave time machine backup.
I currently run Mojave with 18P2561 big sur firmware. And when the computer goes to sleep I get those crashes. It seems that the big sur firmware (18P2561) is working properly only if we’re using Big Sur OS. Not good for reverting the machine to Catalina, Mojave or any other older os!?
 
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