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MacBook won‘t turn on after Monterey install

MacBook pro 2019 after monterey update the computer won’t turn on at all.


tried the usual suspects (pram, pressing command-option-r etc.) but nothing. Computer is also perfectly powered but nothing, no chime, no harddrive sound just a dead computer after the monterey update.


seems like a computer without power but it is fully powered



MacBook Pro 15″, macOS 10.13

Posted on Oct 26, 2021 1:48 AM

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Posted on Oct 28, 2021 1:06 PM

Solution:

https://support.apple.com/en-ca/guide/apple-configurator-2/apdebea5be51/mac


Problem: you need a second computer with the same or an higher operating system version.


As I didn’t have a second machine with Monterey already running, I went to the Apple Store and they revived the T2 chip. Problem solved and I hope this will also help others who faced bricked computers after the Monterey install.

144 replies

Oct 27, 2021 5:53 PM in response to Old Toad

My 2018 MacBook Pro was bricked. I found the solution. The T2 chip that boots the system was corrupted during Monterey install. Here is where I found the procedure: https://mrmacintosh.com/how-to-restore-bridgeos-on-a-t2-mac-how-to-put-a-mac-into-dfu-mode/. This solution rescued my laptop. It is not for the faint of heart. Probably a trip to the Genius bar is

best for most people.

Oct 28, 2021 10:08 PM in response to andreas158

I have the same issue, I brought my 2020 Imac to service center, and it was said that he will test on power board and may replace it. It is caused by update for sure since it was working really great before I clicked the button "update" and restart (no idea about the root cause, boot loader kernel massed up by update?). It happend just 2 weeks after warrenty ends...

Oct 29, 2021 4:24 PM in response to gang0649

It’s making me super angry this is happening to many people and my acquaintance in another part of the planet and many Apple Stores nor Apple acknowledge after many days that there is a problem with this defective update for many people all around the world. I am thinking that maybe I should request later a replacement of logic board for free, if this was really my problem… This undesired laptop brick death can happen to me again later with no Apple Care.


I suggest you find someone that can help you with DFU revive if your Apple Store does not want to help so you can have again a functional laptop and use Big Sur. I was told in my Apple Store not to update my two other older Macs for not having this undesirable outcome again and wait for more updates solving this problem. Let’s see…

Oct 29, 2021 4:34 PM in response to rezky225

Worth trying and this is what my technician did in my Apple Store and I think my laptop works like before with Big Sur but now with Monterey. I know that in another country one acquaintance was told to have new hardware and pay for a lot like some people in this thread. It’s so crazy nothing has been done to stop brick laptops and they have not instructed Apple Stores to give the least inconveniencing solution for users. If there is a hardware problem caused by this update it’s their responsibility to fix it for free.

Oct 31, 2021 5:15 AM in response to Geff Kunert

Yea I figured that was the case. I tried to use apple controller 2 to revive it but my air wouldn’t work “ can’t use the thunderbolt accessory”. I’ve got a call into to my uncle he has a new M1. Hopefully I can use his as a host and get this unbricked without paying Apple a bunch of money to fix a problem they caused. SMH. Wish I could use my iPad Pro as a host pc but that’s nixed as well.

Oct 31, 2021 7:45 AM in response to Cookiemnster35

My MacBook Pro is 2017.


Note: I did have to keep the on/off (finger print sensor) down a few times for 20 secs before something clicked. And I did have to leave it 5 mins to get enough power into it to even show the battery symbol (the reason why I knew it was not charging with the original brick but a third party cable is that I could see the battery symbol indicating I needed to connect to power; hence I used the original cable (then changed USBC ports??) then it worked).


Update: I kept my hub connected (power and peripherals) but also connected the original power brick and original cable to another USBC port. This morning it seems to be fine, woke up immediately, displaying on my monitor through the hub.

MacBook won‘t turn on after Monterey install

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