macOS 12.1 (21C52) for MacBook Air (M1, Late 2020)

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MacBook Air (M1, Late 2020)

✓ This firmware is signed. This means that you can restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

Your download should begin shortly. If it does not, you can download it directly here:

Download (13 GiB)

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your MacBook Air (M1, Late 2020) in to your PC.
  3. Open Apple Devices, and navigate to your MacBook Air (M1, Late 2020).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the UniversalMac_12.1_21C52_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the MacBook Air (M1, Late 2020) to reboot.

macOS

  1. Plug your MacBook Air (M1, Late 2020) in to your Mac.
  2. Navigate to your MacBook Air (M1, Late 2020) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the UniversalMac_12.1_21C52_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the MacBook Air (M1, Late 2020) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your MacBook Air (M1, Late 2020) in to your PC.
  3. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  4. To perform a full erase restore, type idevicerestore -e UniversalMac_12.1_21C52_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the MacBook Air (M1, Late 2020) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash UniversalMac_12.1_21C52_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 04421498d4e6e031f2269c988a2663ebacb774e4. If it doesn't, you may need to redownload the file.

macOS

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 UniversalMac_12.1_21C52_Restore.ipsw
  3. The output of the command should match the following checksum: 04421498d4e6e031f2269c988a2663ebacb774e4. If it doesn't, you may need to redownload the file.

Linux

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 UniversalMac_12.1_21C52_Restore.ipsw
  3. The output of the command should match the following checksum: 04421498d4e6e031f2269c988a2663ebacb774e4. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum8d3863cd4a09d5cfd75c4a3e61f7605d800f653b5ecd6e8628b19a44de6a67b0
MD5sum8d3863cd4a09d5cfd75c4a3e61f7605d800f653b5ecd6e8628b19a44de6a67b0
SHA1sum04421498d4e6e031f2269c988a2663ebacb774e4
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