Did you update to Catalina? Haven't experienced any crashes on my 16in yet.
Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
2018 MacBook Pros crashing with "Bridge OS" error
- Thread starter kryptticAZ
- Start date
- Sort by reaction score
I think the only way you will be able to fix it is take it to an approved repairer. Get them to replace the logic board and Touch Bar. I would copy the kernel panic reports into a note on your computer (iCloud notes would be good) then you can show the repairer when you go in to make it easier for them to diagnose. Hope you get it sorted.
macOS 10.15.3 (19D76) seems to include another T2 firmware update: 17P3050.
Yes it does. Believe it or not my 2018 MBP had a T2 crash while installing that update lol Apple is just ridiculous these days ...
HELP!!
Bridge os error crashes started 2 months back or so, I updated the os to Mojave and that solved the problem. Now again my laptop is stuck on reboot loop. After logging in i can barely use it for 2 minutes and it freezes/restarts. I have tried every possible solution mentioned here. Just now did a clean wipe & reinstalled Mojave, still same problem!!
Is my macbook doomed? I will take it to service centre, it’s out of warranty.
(
Could this be an hardware issue? Catalina is a no go for me.
Bridge os error crashes started 2 months back or so, I updated the os to Mojave and that solved the problem. Now again my laptop is stuck on reboot loop. After logging in i can barely use it for 2 minutes and it freezes/restarts. I have tried every possible solution mentioned here. Just now did a clean wipe & reinstalled Mojave, still same problem!!
Is my macbook doomed? I will take it to service centre, it’s out of warranty.
( Could this be an hardware issue? Catalina is a no go for me.
Some temporary solutions:
1. Disable FileVault and Hey Siri
2. Reset SMC and NVRAM/PRAM
3. Disable PowerNap, Hardrive sleep, Wake for WiFi connection and let the screen never sleep.
Follow these 3 steps can reduce the possibility of T2 Crash dramatically, but can not solve it once for all.
Apple, if you see this, please provide an option for us to disable T2 chip completely.
1. Disable FileVault and Hey Siri
2. Reset SMC and NVRAM/PRAM
3. Disable PowerNap, Hardrive sleep, Wake for WiFi connection and let the screen never sleep.
Follow these 3 steps can reduce the possibility of T2 Crash dramatically, but can not solve it once for all.
Apple, if you see this, please provide an option for us to disable T2 chip completely.
There's no way to disable T2, it controls vital parts of the Mac, it's like disabling your Mac, it is not even possible to power on without the T2 chip.
So I had the keyboard, touchbar and battery piece swapped under warranty due to a service program for button repeating. I did notice that my crashes stopped (at least for a week, I need more time to be sure it's gone). Also my firmware changed:
Firmware Version: 17P3050
Was this due to the hardware swap or it was just an update? As far as I know my Catalina didn't get updated since then.
This update is part of 10.15.3, so if you weren't running that before, you probably are now.
Guys! My 15 mbp 2018 is sitting in the service centre useless. I won’t work more than 2 minutes, if i copy a file/ play youtube video it will crash, then the other day it worked fine entire day and the service advisor asked me to pick it up the next day, i call in next day and again its freezing. They are asking to replace logic board. It costs around 1300$ Usd where im based, but has only 90 days warranty, what if i get another bad logic board?
How can I trust this model anymore?
Anyone here knows the cost of new logic board in the States? Can there be a cheaper alternative like refurbished logic board through apple? My mbp is 3 months out of warranty.
How can I trust this model anymore?
Anyone here knows the cost of new logic board in the States? Can there be a cheaper alternative like refurbished logic board through apple? My mbp is 3 months out of warranty.
In addition to a 2017 MBPro 15", I also have a 2018 MBAir. Both running Mojave now, but plan a Catalina update in the next few days. Never had the issue with my 15 Pro, but I do see the Bridge OS error from time-to-time on my Air. Leave the Air running overnight with the lid closed. Next morning, I get the "your Mac was restarted because of a problem" message, and the crash log mentions the "bridge error".
A similar/related manifestation bit me.
- Woke Mac (MacBookPro15,1 -- Mojave 10.14.6 (18G3020) -- 1037.80.53.0.0 (iBridge: 17.16.13050.0.0,0))
- Unlocked
- Plugged in A1621 adapter (sleeping external monitor, power supply, USB keyboard)
- The onboard "started charging" sound played with short silences interspersed (like quarter second of sound, quarter second of silence...maybe 2 or 3 silences)
- The monitor never awoke (unusually)
- the mac crashed. Bad Magic.
New to this thread:
I am having multiple kernel panic crash & restarting issues with my new MBP 16".
3 weeks straight at least once a day I get a "ProxiedDevice-Bridge", "WindowsServer WatchdogTimer", or "Thunderbolt power on failed" problem report messages.
Apple support asked if I am running Windows and said no - pure MacOS. Then asked what peripherals I have connected which is the Apple charger + TB3 to TB2 Apple adapter for my 27" TB display which has all the cabling on the back (Ethernet, FW800 HDD, Apple USB mouse & KB...
Apple support said I needed to do a Catalina upgrade to 10.15.3, SMC reset and PRAM reset which I did and still not fixed.
They said I would have to reinstall the OS.
Is this normal ?
Quite frustrated as this machine replaced my 2012 MBP that has been trusty and working like a champ.
Sometimes, the 16" MBP does not respond so I switch it out back to the 2012 so that I can remain productive.
I this normal? Seems so if you have a T2 mac. Should it be? NO!!!!!
For me, it seems to come in waves, which has been a lot lately, with no real hints of why.
For me, it seems to come in waves, which has been a lot lately, with no real hints of why.
Hi guys, so frustrated with this problem so i have started a new petition, I request everyone who is going to through this problem to sign & share and hopefully this takes us somewhere 
chng.it
Sign the Petition
Replace or Fix all 2018 MacBook Pro crashing due to kernel panics - 'Bridge Os Error'
chng.it
Whatever that keyboard/touchpad/battery/touchbar replacement did, my Macbook doesn't crash anymore. Perhaps a faulty touchbar/fingerprint sensor? Regardsless, issue is gone now and my only change was the swap.
Had this happen to me on my new(two months old) base model MBP16”.
Only thing I did differently when waking it from sleep, was plug in an external usb hard drive before unlocking with TouchID. The desktop came onto the screen, the computer froze, and after a couple of seconds, the fan spun up and the thing turned off.
Started up just fine after that. I hope this isnt a hardware issue?
Only thing I did differently when waking it from sleep, was plug in an external usb hard drive before unlocking with TouchID. The desktop came onto the screen, the computer froze, and after a couple of seconds, the fan spun up and the thing turned off.
Started up just fine after that. I hope this isnt a hardware issue?
@hawkeye_a Yes, it's same problem we guys have been facing, initially my mbp would crash once in 2 weeks or so just like yours, and i did not take it seriously, slightly post out of warranty it started happening more often and to a state where it cannot be used for more than 2 minutes without the laptop crashing. I say next time this happnes keep your phone ready and get a video and take it to the apple store for inspection right away.
UPDATE
MBP would not work for more than 2 minutes, screen would freeze, fans go full speed and reboot with bridge os error. It was stuck in a loop, took it to service centre it was sitting there for 3 weeks, in the meanwhile i was fighting with apple to resolve this, no luck.
Finally i picked it up from the service centre and it was working ok, how?? Even the service advisor was shocked (and embarrassed because i was told to change the logic board as it would not work for more than 2mins), its been 4 days my mbp has been running fine on Catalina, i am trying to crash it because i have to share the crash logs with apple care but it wont crash, even played a heavy game on it. Whats going on ??
I cannot trust this machine anymore, i am not going to invest on another logic board which has only 90 days warranty, what if the same problem starts again?
UPDATE
MBP would not work for more than 2 minutes, screen would freeze, fans go full speed and reboot with bridge os error. It was stuck in a loop, took it to service centre it was sitting there for 3 weeks, in the meanwhile i was fighting with apple to resolve this, no luck.
Finally i picked it up from the service centre and it was working ok, how?? Even the service advisor was shocked (and embarrassed because i was told to change the logic board as it would not work for more than 2mins), its been 4 days my mbp has been running fine on Catalina, i am trying to crash it because i have to share the crash logs with apple care but it wont crash, even played a heavy game on it. Whats going on ??
I cannot trust this machine anymore, i am not going to invest on another logic board which has only 90 days warranty, what if the same problem starts again?
You hope that this isn't a hardware issue? Have you not looked at these 152 pages of posts??
I seems like it's a combination of factors. T2 chip, Catalina, USB-C devices, power management, encryption, and maybe some background task like indexing. (Of course this is just speculation, as 'Bad Magic' could be anything). IMHO.
I'll just keep an eye on it.
Any news about the Previous shutdown cause: -11 ? I know some of you on that thread had it in the past year. My MacBook 15" 2018 keeps shutting down abruptly and the log shows -11 when the kernel panic occurred I guess?
Last edited: