Apple Fixes Bug That Bricked Some Intel Macs After macOS Monterey Install

Apple has fixed an issue that could cause some Intel Macs with a T2 chip to fail to boot up after macOS Monterey was installed, Apple said in a statement. There was a problem with the firmware on the Apple T2 security chip that prevented some users from being able start their Macs after updating to the ‌macOS Monterey‌ software.

macOS Monterey on MBP Feature
Apple says that a BridgeOS firmware update is now included with the existing macOS updates to prevent further failures, and users already impacted by the issue should contact Apple Support for assistance with their machines.


Following the launch of ‌macOS Monterey‌, there were multiple reports from users who found their Macs bricked after updating. Affected users were unable to turn their Macs on, an issue that affected models with a T2 security chip that powers things like Touch ID. Macs with M-series chips were not affected as they do not have a separate T2 chip. Macs with a T2 chip were manufactured between 2017 and 2020, with a list available below.

  • iMac (Retina 5K, 27-inch, 2020)
  • ‌iMac‌ Pro
  • Mac Pro (2019)
  • ‌Mac Pro‌ (Rack, 2019)
  • Mac mini (2018)
  • MacBook Air (Retina, 13-inch, 2020)
  • ‌MacBook Air‌ (Retina, 13-inch, 2019)
  • ‌MacBook Air‌ (Retina, 13-inch, 2018)
  • MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports)
  • MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports)
  • MacBook Pro (16-inch, 2019)
  • MacBook Pro (13-inch, 2019, Two Thunderbolt 3 ports)
  • MacBook Pro (15-inch, 2019)
  • MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports)
  • MacBook Pro (15-inch, 2018)
  • MacBook Pro (13-inch, 2018, Four Thunderbolt 3 ports)

Intel Mac users will no longer run into this issue now that new firmware has been released to address the problem, but those who already have a dead Mac will need help from Apple to get their devices up and running again.

Related Roundup: macOS Monterey
Related Forum: macOS Monterey

Top Rated Comments

KaliYoni Avatar
9 months ago
This is a bug that never should have made it past QA testing. I think the frequent problems with macOS, iOS, iPadOS, and tvOS releases and updates are symptoms of how Apple's culture (secrecy, compartmentalization, non-collaborative across company enforced silos) hurts us, Apple USERS. An OS is a lot different from a social media app; the Keep Shipping mentality can do a lot of damage to somebody who completely loses the ability to use their machines.
Score: 53 Votes (Like | Disagree)
mikeb13 Avatar
9 months ago
How are they going to get the update if they can’t boot their Mac?
Score: 40 Votes (Like | Disagree)
ArtOfWarfare Avatar
9 months ago
This is why I don't update my Apple devices on day one anymore.

Apple's quality has become atrocious.

How the heck do they not catch that Intel based computers fail to boot after installing this update?

There was a 6 month long public beta for Monterey - how was this not caught during that?

And then when it's discovered, the OS was released 11 days ago. Apple was just too busy making other broken software to bother fixing the fact that a lot of Macs couldn't boot for nearly two weeks?
Score: 36 Votes (Like | Disagree)
MrMacintoshBlog Avatar
9 months ago

They can't, or at least Apple hasn't released instructions on how it can be done. Fix will prevent more Macs from having this problem, but those who already have a bricked Mac will need to get it fixed by Apple.
I've released instructions for anyone who is having this issue. ?

You are affected by this issue if your T2 Intel Mac (2018-2020) is booting up to a black screen after installing the Monterey 12.0.1, Big Sur 11.6.1 or Catalina 2021-007 Security Update.

You will need a 2nd Mac for the fix and will be restoring the BridgeOS firmware. Once connected, you will perform a REVIVE. This will fix the issue + retain all OS and User data.

The Apple Store can do this for you but BE SURE to say you need a REVIVE and not a restore. If they click the restore option all your data will be ERASED.

https://mrmacintosh.com/how-to-restore-bridgeos-on-a-t2-mac-how-to-put-a-mac-into-dfu-mode/
Score: 36 Votes (Like | Disagree)
antiprotest Avatar
9 months ago

is this really a "bug"?

or is it Apple's polite way of reminding people to upgrade to a Mac with M1 chip?
(a.k.a. time to contribute more money to the "Tim Cook & Apple Executives New 225-foot Yachts Fund")
They have been incompetent enough in recent years for me to believe that this was indeed an unintentional bug.
Score: 16 Votes (Like | Disagree)
w5jck Avatar
9 months ago

I actually appreciate Apple is being more transparent to push obsolescence on the intel macs.

Your pc wouldn’t have been bricked if it were an iMac M1 chip :)
Not everyone can go out and plop down thousands of dollars to replace their Intel Macs. It takes time to replace those Macs. I can't write out the rest of my response to you as it would certainly get deleted by the mods...
Score: 13 Votes (Like | Disagree)

Related Stories

M1X MBP Feature

Leaker: Upcoming MacBook Pro to See Price Hike Over Current Model, Equal Performance Across 14 and 16-Inch Sizes

Tuesday August 24, 2021 5:28 am PDT by
The upcoming 14-inch MacBook Pro is set to be more expensive than the current 13-inch MacBook Pro and both the 14 and 16-inch models will offer the same performance, according to the leaker known as "Dylandkt." The leaker shared the information on Twitter, explaining that both of the upcoming MacBook Pro models, expected to come in 14 and 16-inch sizes, will feature the same performance due...
aapl logo banner

Which New Mac Will Apple Release at Its March Event?

Sunday February 20, 2022 2:00 am PST by
Apple is widely expected to unveil a new Mac next month, but with the high-end Mac mini, the 27-inch iMac, and the Mac Pro all still featuring Intel chips and Apple's M1 machines from 2020 now reaching almost 15 months in age, it is not immediately clear which new model the company is planning to announce next. Bloomberg's Mark Gurman, who often reveals accurate insights into Apple's plans, r...
13 inch macbook pro m2 mock feature 2

Apple to Unveil 13-inch M2 MacBook Pro With Unchanged Design Next Month, Claims Original MacBook Pro 'Notch' Leaker

Tuesday February 15, 2022 4:07 am PST by
Apple will next month debut its latest M2 Apple silicon processor in a refreshed 13-inch MacBook Pro model that will have no major design changes, according to a previously reliable source with close links to Apple's supply chain. Based on the new information seen by MacRumors, the upcoming 13-inch MacBook Pro retains the same design as the current version, including the Touch Bar, but...
macbook pro 13 inch banner

Apple Could Discontinue the 13-Inch MacBook Pro – Here's Why

Friday November 26, 2021 2:20 am PST by
Following the launch of Apple's long-awaited 14-inch and 16-inch MacBook Pro, there are early signs that the company could discontinue the entry-level 13-inch model, which is starting to look like an outlier in the product lineup. Last updated in November 2020, the 13-inch MacBook Pro is now an anomaly in the Mac lineup, being the only device with the Touch Bar. With no rumors of a 13-inch...
2021 MBP Profile Feature Yellow

New 16-Inch MacBook Pro is Thicker and Heavier Than Previous Generation

Monday October 18, 2021 1:03 pm PDT by
Apple today announced completely redesigned 14-inch and 16-inch MacBook Pro models that in the case of the 16-inch model is unsurprisingly thicker and heavier than the previous generation. Apple announced a new 14-inch model that replaced the high-end Intel 13-inch MacBook Pros. Given the larger screen, it's not fair to compare the two models. What is fair game, however, is to take a look at ...
macos monterey

Some Older Macs Reportedly Bricked After Installing macOS Monterey

Monday November 1, 2021 3:12 am PDT by
macOS Monterey, released last week as the latest version of macOS, is bricking older Mac computers, rendering them unusable and unable to even turn on, according to a number of reports from users across social media and online forums. If this sounds oddly familiar, it may be because last year, with the launch of macOS Big Sur, similar reports surfaced about that update bricking older...
macos monterey

macOS Monterey 12.3 Update Bricking Macs That Have Had Logic Board Replacements

Thursday March 17, 2022 5:12 am PDT by
The latest macOS Monterey update, released to the public this week, is bricking Macs that have had their logic boards replaced, causing panic among customers who are unable to get their Mac back to a working state, according to a cluster of user reports posted on social media and Apple's support forums. Apple this week released macOS Monterey 12.3, which among other things, brought Universal ...
14in MacBook Pro Deals Red Orange

Deals: Take $200 Off 2021 MacBook Pro Models in Amazon's New Sale

Monday March 14, 2022 6:47 am PDT by
Amazon today is offering deals on a few models of Apple's 2021 MacBook Pro lineup, with as much as $200 off the newest Apple notebooks. All of these models are in stock and sold directly by Amazon, and no coupon codes are required this time. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps ...

Popular Stories

top stories 2jul2022

Top Stories: M2 MacBook Air Release Date, New HomePod Rumor, and More

Saturday July 2, 2022 6:00 am PDT by
The M2 MacBook Pro has started making its way into customers' hands and we're learning more about how it performs in a variety of situations, but all eyes are really on the upcoming M2 MacBook Air which has seen a complete redesign and should be arriving in a couple of weeks. Other top stories this week included a host of product rumors including additional M2 and even M3 Macs, an updated...
Mac Studio IO

Apple Begins Selling Refurbished Mac Studio Models

Thursday June 30, 2022 7:42 pm PDT by
Apple today began selling refurbished Mac Studio models for the first time in the United States, Canada, and select European countries, such as Belgium, Germany, Ireland, Spain, Switzerland, the Netherlands, and the United Kingdom. In the United States, two refurbished Mac Studio configurations are currently available, including one with the M1 Max chip (10-core CPU and 24-core GPU) for...
macbook air m2

Exclusive: Apple Plans to Launch MacBook Air With M2 Chip on July 15

Wednesday June 29, 2022 5:23 pm PDT by
The redesigned MacBook Air with the all-new M2 Apple silicon chip will be available for customers starting Friday, July 15, MacRumors has learned from a retail source. The new MacBook Air was announced and previewed during WWDC earlier this month, with Apple stating availability will begin in July. The MacBook Air features a redesigned body that is thinner and lighter than the previous...
13 inch macbook pro m2 mock feature 2

M2 MacBook Pro Much Slower Than Previous Model

Friday July 1, 2022 2:24 am PDT by
Apple's new 13-inch MacBook Pro with the M2 chip features a significantly slower SSD compared to the previous model, resulting in poorer performance in some workflows, it has been discovered. Specifically, it has been found that the $1,299 base model with 256GB of storage has significantly slower SSD read and write speeds compared to the equivalent previous-generation 13-inch MacBook Pro....