MacBook Pro wont't boot post update

Hi,


I have a 2017 MacBook Pro which I attempted to upgrade to macOS Monterey today. Previously it was on Big Sur.


After downloading and clicking "Upgrade Now" I went outside and let it do its thing.


Returned half an hour later- and my computer won't boot. It's stuck in a loop like so:


  1. Turns on
  2. Fans run
  3. Apple logo appears
  4. Progress bar completes
  5. Shuts off
  6. Repeat


I've tried to boot into Recovery mode by holding down Cmd+ R after it turns on.

But it always shuts down after the apple logo.


I'll mention that the update took all day to download and then got stuck and didn't move anywhere for about an hour. So I restarted the computer. Take two was much faster. Not sure if that has anything to do with it.


It's getting late so I'll be heading to sleep soon. I closed the lid but I can still hear the fans turning on and off. Btw, it's not charging. Nothing connected to it.


This is literally a nightmare

All I've done is attempt to install an official software update and it wrecked my computer.

If I can't solve this on my own with the help of the community I'll probably have to pay to get it fixed. And even then I'm not sure what'll happen with all my data and work on it.


Any help appreciated.

Tilen

MacBook Pro 15″, macOS 11.6

Posted on Oct 26, 2021 5:05 PM

Reply
Question marked as Top-ranking reply

Posted on Dec 13, 2021 11:52 AM

UPDATE: So after reading what seems to be very little on the issues Montery Caused on Older Laptops, I was finally able to fix my 2017 Macbook Pro. I had to download the full Big Sur OS and create a Bootable USB drive. I then booted up my Mac, and wiped the existing drive (Yes I thought I was losing all my data, but was fine with it). Once I deleted the Partition, created a new partition and started the Big Sur Software install. The Machine seemed to be loading the old OS correctly. After a reboot, the progress bar got stuck with the apple logo. Tried a couple times restarting, but then decided to take out the USB drive and boot up holding Option R keys. This ended up booting up the laptop, and it launched the initial configuration screen of Big Sur. Once going through the setup, I restarted the machine a couple times to make sure it booted up correctly and it did. I ended up finding a volume called Macbook data, which ended up keeping all the data from my laptop before I re-installed the OS. Looks like i might have lucked out, but I hope that it helps anyone that has the same boot loop issue. I wasn't going to give up without a fight.


Key things: Bootable USB with Big Sur OS

Keep rebooting laptop if it gets stuck, but give it time to process as sometimes its extremely slow.


Hope this helps others.



Similar questions

20 replies

Nov 17, 2021 3:17 AM in response to tilen146

So with the last bit of hope, I’ve sent a polite email to the CEO, to try to bring this problem to his attention and asked him to consider compensation to the affected users. As you might expect, there was no response.


I’ve read on the forums that he (or somebody on his behalf) actually reads and replies to emails from the users. But it’s been a couple of days since, and at this point, I’ll be very surprised if I get a reply.


Kinda lame. I mean I’ve lost almost a month of my time and took a $800 blow to my bank account. Won’t be able to do any proper work until I get my computer back at the end of the month. And they can’t take 2 minutes to read my mail.


Well, I’ve played my last card. Nothing more I can do. Take care guys 💪🏻


Nov 17, 2021 1:12 PM in response to tilen146

..tilen:

There had been a firmware update involved, to enable a later Monterey 12.x upDate or upGrade.

And that is where to address a service tech; someone who knows how to upgrade firmware.


Haven't kept up on details; have too many 'irons in the fire' so to speak here. You've had it light -

compared to the depths I've gone. ~ And finally Apple support in California called (the now failed

AASP in Anchorage) to tell them "just do what the customer said; he's fully trouble-shot this and

the answer appears that he's correct in this."


I was able to fully troubleshoot and isolate the cause; and repeatedly made it kernel panic, etc;

in Seven Steps from boot. Until it froze; then restart to start over again. And it was combination

of what an AASP did while in "their care" ~ and a hardware failure, the unit shipped with.


At least a few times I had to attempt Apple they weren't here; Unavailable. Only reason I had new

Hardware and AppleCare. The AASP and 8 months of 200+ miles driving; to see what ONE of four

could do... So now, Most of my gear now is decidedly older with newest, fast becoming vintage.


My answer could be to buy all new stuff; with Fixes built-in!

(What's money.?

🐌🌻❄️🌿🐢

.When I've none.)

Nov 17, 2021 3:25 PM in response to K Shaffer

I appreciate your wisdom but I’m not sure if you’re saying there’s something I can do about the computer that’s currently in repair or suggesting it’s better to buy a new one.

How could I possibly get the firmware updated? I thought a dead logic board meant that either a trace of circuitry is broken/ melted or that a chip got smoked (although the tech apparently couldn’t see anything out of the ordinary).

And even if I demand the broken thing back I’d probably still have to pay for diagnosis.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

MacBook Pro wont't boot post update

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.