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User profile for user: mrnmi
mrnmi Author
User level: Level 1
4 points

Cannot upgrade MacBook Air (M1, 2020) from Big Sur to Monterey

I'm on Big Sur 11.6 (20G165) and try to upgrade my MacBook Air (M1, 2020) to Monterey. The upgrade downloads and then fails with:


"Installation cannot proceed because the installer is damaged. Redownload the installer and try again."


After reading online I've tried the following things:

  • Remove the installer from "Applications" and redownloaded it (on wifi)
  • Remove the installer from "Applications" and redownloaded it (on ethernet, directly connected to the router)
  • Started the MacBook in "Safe mode", and redownloaded the installer (on wifi)
  • Started the MacBook in "Safe mode", and redownloaded the installer (on ethernet, directly connected to the router)
  • Downloaded the installer using https://github.com/corpnewt/gibMacOS


I have no VPN in use, I have enough empty disk space (around 100GB), I have no Antivirus running.


I cannot believe that I cannot download a 12 GB file without it being corrupt. So something else is going on and I cannot seem to find out what.


I would appreciate any additional help.


Thanks a lot!

MacBook Air (2020 or later)

Posted on Mar 9, 2022 8:45 PM

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User profile for user: mrnmi
mrnmi Author
User level: Level 1
4 points

Posted on Mar 14, 2022 8:02 AM

Just to close the loop on this ticket: I had my MacBook checked at an Apple Store over night. The summary: the memory is faulty and I need a new board since the memory is soldered to the board nowadays. $428 plus tax :(

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User profile for user: Brandon_J_321
Brandon_J_321
User level: Community Specialist

Mar 10, 2022 3:08 PM in response to mrnmi

Howdy mrnmi,


We see you've already tried some great steps to upgrade to macOS Monterey, so let's see if the following information may help.


As you've already tried downloading an installer, let's give this a try again with a different method. You'll need to use a different Mac that is compatible with macOS Monterey in order to complete the steps to try a bootable installer. Check out the following steps, which can be found here: How to create a bootable installer for macOS


Download macOS

The installer for macOS Monterey, macOS Big Sur, macOS Catalina, macOS Mojave, or macOS High Sierra downloads to your Applications folder as an app named Install macOS [version name]. If the installer opens after downloading, quit it without continuing installation. To get the correct installer:

• Download on a Mac that is compatible with that version of macOS.
• Download on a Mac that is using macOS Sierra 10.12.5 or later, or OS X El Capitan 10.11.6.
• Enterprise administrators: Download from Apple, not a locally hosted software-update server. 

The installer for OS X El Capitan downloads to your Downloads folder as a disk image named InstallMacOSX.dmg. To get the installer:

• Download using Safari, and open the disk image on a Mac that is compatible with OS X El Capitan.
• Inside the disk image is an installer named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.


If those steps don't work, you'll want to Contact Apple Support to check into this with you in more detail.


Have a great day!

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Cannot upgrade MacBook Air (M1, 2020) from Big Sur to Monterey

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