In a statement shared by Apple and posted by Rene Ritchie on Twitter, “We have identified and fixed an issue with the firmware on the Apple T2 security chip that prevented a small number of users from launching their Macs after updating macOS. It is now included. the current firmware updates and macOS updates.Any user affected by this issue can contact Apple Support for assistance.
Keep in mind that this upgrade does not update Macs that were brick due to the update, but it fixes the issue so that Macs that do not have macOS Monterey installed but will not experience the same problem when they install it. For those affected and have a brick Mac, you should go to Apple for more help.
So far it seems that the affected Macs are all Intel -based Macs, so if you’re using one of Apple’s new M1 Macs, here’s (four hope) should not be a problem.