MacBook won‘t turn on after Monterey install

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.

FYI I didn’t lose the data with DFU procedure in Apple Store. I have been told they “revived” the laptop later not by Apple Genius people. So far Monterey is working well in my one year old laptop. I hope yours will be fixed soon.

I have a macbook pro 2019 (16 inch), after installing the update to monterey it has not started again, in an Apple service they have told me that the mother has stopped working ... After an update can this happen?

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...

Don’t allow them to make pay for it. I had the same strange problem with this update, one acquaintance too in other part of this planet and many other people as reported here. Request them to revive your laptop with DFU for free in Apple Store. My laptop has revived and I use Monterey with no problems now.

Actually in my Apple Store they told me my laptop had no problems of power as they tested the mouse and you could feel the clicks. I didn’t know this… Try if it happens this with yours and you can prove it to your Apple Store staff

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…

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.

I also think they checked there was a hardware problem and I was told when they brought my laptop to the service unit downstairs. Now I am really doubting it has some hardware problem and I should request they fix it. Good luck!

I did the same thing. It turned out the laptop had completely drained of power, to get it back to life I had to use the original charger and USBC cable. They it recharged an started to work.

Connected it back up to my hub/monitor, checked it was powered, it went to sleep, drained again Its done it 3 times now in a single day.

Have you tried disconnecting it from all HIMS and cables and plugging it into the original charger and cable? When I did this and held the power button down for about 20 seconds it came back on and showed be the battery was dead. Once it charged up it was ok. But I can’t connect power through the hub now

I have a 15” MacBook Pro 2016, also not turning on right after the reset, after updating to Monterey.

Called Apple, they tried the right SHIFT+ left control + left option and power, but it didn’t worked.

They advise to take to a service center. I asked who would cover any possible fees, they said it was me. Problem coming up if this happens.

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.

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.

I upgraded MBP 2018 to Monterey and set a time machine back up after. While backing up it made a cracking noise, followed by burning smell and it doesn’t turn on any more. This is so weird. This MBP was barely used over the past three years.