Apple fixes a bug that caused some Macs to not boot after installing macOS Monterey

Apple has confirmed that they have managed to fix a bug in the Mac operating system that caused some Mac computers to fail to boot after installing macOS Monterey.


  • Some users complained about bricked Macs after updating to Monterey
  • The culprit: a bug in the firmware of the Apple T2 security chip
  • macOS Monterey has a solution to this problem

Apple fixes problems booting macOS Monterey

A heap Posts in Apple’s forums suggest macOS Monterey is causing some Macs to refuse to boot. In some cases, users report that Macs won’t turn on at all. This isn’t the first time we’ve heard of boot problems after installing a macOS update, so this update should come as no surprise. Read: Useful Keyboard Shortcuts To Start Up Your Mac

Fortunately, Apple seems to have managed to fix this problem within a few days. The company makes a statement René Ritchie This confirms that there is a problem with the firmware which has now been fixed. A fix is ​​also included in the existing updates.

Here is Apple’s full statement to Richie:

We identified and fixed an issue with the firmware on the Apple T2 security chip that was preventing a very small number of users from starting their Mac after updating macOS. The updated firmware is now included in the existing macOS updates.

But how do you install the update if the bug has already rendered your Mac useless and refuses to boot or even turn on? Well, all users affected by this issue “can contact Apple Support for help,” as the company wrote in its response.

Apple’s statement on macOS issues. Full text in alternative description:

– Rene Ritchie (@reneritchie) November 5, 2021

An accompanying document to the Apple website says that a Mac may become unresponsive if a power outage occurs during a macOS update or upgrade. If this happens to you, “your Mac may become unresponsive and the firmware may need to be revived or restored,” the company states.

If the mere thought of taking your Mac to a nearby Apple Store is driving you crazy, you can try resuscitating the T2 chip yourself by following the directions in the support document above. Basically, you need a second computer with the same or a higher version of the operating system to stone your Mac.

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