kesh3000 wrote:
I receive an error message when I try to install macOS Monterey on my 2015 MacBook Pro.
The message reads "A required firmware update could not be installed. Compatible internal storage is required in order to
update." I have 511GB of free internal storage and I don’t understand what this means.
I factory reset my MacBook and I’m reinstalling macOS Monterey in recovery mode. I can’t update in target disk mode because I don’t have access to another mac. I don’t know what to do.
Could someone please help me?
Thank you in advance.
Well that is a pretty specific message:
"A required firmware update could not be installed. Compatible internal storage is required in order to
update."
How to reinstall macOS
Recovery (both M1 and Intel) — How to reinstall macOS - Apple Support
Failed to Install Monterey —
This is a known issue— non OEM Apple NVMe / PCIe SSD
The work around is to reinstall the OEM Apple Drive, upgrade that drive which will flash the board, then reinstall your third party drive and run the installer.
The EFI /Firmware part of the Monterey pkg is verifying for OEM Apple Drives and fails to upgrade. The EFI boot ROM is required to Flash the board and is required to successfully install Monterey.
interesting post here:
https://www.reddit.com/r/MacOS/comments/qm3rv0/macos_monterey_update_without_the_original_apple/
I thought there was an update to the original 12.1 that sorted this issue out(?) Recovery offers different options.
If it is an old installer, delete it and download again to verify it is the current macOS 12.3 —maybe I am wrong here.
