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I'm getting frequent iMac Pro crashes. On restart it says the computer has crashed with a BRIDGE OS 3.3 code listed in the log. Clean install recently didn't help. Running Mojave.
iMac Pro, macOS 10.14
My research shows that there are multiple threads on this topic in a few different Mac forums. Bridge OS is related to the new T2 chips that are in the 2017 and 2018 MBPs. A Bridge OS 3.3 error with symptoms of the computer randomly restarting - AKA kernel panic - could indicate a hardware issue with the T2 chip.
I purchased an Apple refurbished 2018 13" MBP and immediately began having kernel panics and restarts. A quick check of the logs in Console (CMD+Spacebar > Console) shows a cause of Bridge OS 3.3 error every time. You can learn more about what Bridge OS is, what it does and its relation to the T2 chip by Googling it.
Fortunately I discovered the issue within the return window and Apple is sending me a replacement unit. HOWEVER, this issue does NOT show up in a normal diagnostic, meaning when you restart and hold the D key down, the laptop / mini will pass the diagnostic. My hypothesis is that there is a plethora of refurbed units because of this bug, and that when they go to refurb and inspect them before reselling, the diagnostic tools are not catching the Bridge OS 3.3 error so they are getting shipped out. I am hoping that the replacement refurb unit has been fully inspected for this hardware issue and I'll revisit this post to update it next week. Very frustrating.
Apple may "claim" that they aren't aware of it, but it's clear that many users are having this same issue and it's been happening for a while, so they "should" be aware of it. If you're experiencing this I would ship your unit back to Cupertino under AppleCare to have it evaluated. Kernel panics wreak havoc across the board and are very frustrating.
https://forums.macrumors.com/threads/2018-macbook-pros-crashing-with-bridge-os-error.2128976/
https://forums.macrumors.com/threads/2018-mac-mini-crash-bridge-os.2164530/
https://venturebeat.com/2018/07/25/apple-t2-chip-blamed-for-2018-macbook-pro-and-imac-pro-crashes/
Keywords for this thread: kernel panic, Bridge OS, 2017 MacBook Pro Hardware Issue, 2019 MacBook Pro Hardware Issue, T2 Chip Defective, T2 Chip Defect, Bridge OS 3.0 error message, restarts
My research shows that there are multiple threads on this topic in a few different Mac forums. Bridge OS is related to the new T2 chips that are in the 2017 and 2018 MBPs. A Bridge OS 3.3 error with symptoms of the computer randomly restarting - AKA kernel panic - could indicate a hardware issue with the T2 chip.
I purchased an Apple refurbished 2018 13" MBP and immediately began having kernel panics and restarts. A quick check of the logs in Console (CMD+Spacebar > Console) shows a cause of Bridge OS 3.3 error every time. You can learn more about what Bridge OS is, what it does and its relation to the T2 chip by Googling it.
Fortunately I discovered the issue within the return window and Apple is sending me a replacement unit. HOWEVER, this issue does NOT show up in a normal diagnostic, meaning when you restart and hold the D key down, the laptop / mini will pass the diagnostic. My hypothesis is that there is a plethora of refurbed units because of this bug, and that when they go to refurb and inspect them before reselling, the diagnostic tools are not catching the Bridge OS 3.3 error so they are getting shipped out. I am hoping that the replacement refurb unit has been fully inspected for this hardware issue and I'll revisit this post to update it next week. Very frustrating.
Apple may "claim" that they aren't aware of it, but it's clear that many users are having this same issue and it's been happening for a while, so they "should" be aware of it. If you're experiencing this I would ship your unit back to Cupertino under AppleCare to have it evaluated. Kernel panics wreak havoc across the board and are very frustrating.
https://forums.macrumors.com/threads/2018-macbook-pros-crashing-with-bridge-os-error.2128976/
https://forums.macrumors.com/threads/2018-mac-mini-crash-bridge-os.2164530/
https://venturebeat.com/2018/07/25/apple-t2-chip-blamed-for-2018-macbook-pro-and-imac-pro-crashes/
Keywords for this thread: kernel panic, Bridge OS, 2017 MacBook Pro Hardware Issue, 2019 MacBook Pro Hardware Issue, T2 Chip Defective, T2 Chip Defect, Bridge OS 3.0 error message, restarts
Eee-gad. I'm sorry that you bought a iMac Pro. The famous Bridge OS crashes. Search the forum. I've had this issue over the past 18 months and have given up on Apple fixing it. The Apple store replaced my memory (even though it has error correction memory) saying that fixed the issue. Sorry, Apple, your tests didn't catch the problem and my machine continues to crash when it is under heavy load.
Call Apple Support and let them take responsibility. This is a two year old issue.
Does this two year old issue have a name? Happening to me as well on 2018 MBP 13".
Called Apple. They said they don’t have record of this being an issue. Welcome to the new Apple everyone. Bugs that never get squashed.
My issues started happening 2 weeks ago. I have tried working around without success. It is Frustrating. Is there a patch or something that can help?
Call Apple Support to arrange a repair. If this is a new unit return it for another. This seems to be a hardware issue.
There's news out there about the T2 crashes so "it's new" is an incorrect statement. I'd say lie, but really it's a matter of finding someone senior enough to know things.
Re hardware issue I returned three of the machines -- never could get them to work under load.
iMac Pro - Bridge OS 3.3 Bug. Computer restarts on own.
