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MacBook Air (M1, Late 2020)

macOS 12.0.1 (21A559) for MacBook Air (M1, Late 2020)

✓ This firmware is signed. This means that you can restore to it in iTunes.

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Download (14.1 GB)

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Plug your MacBook Air (M1, Late 2020) in to your PC.
  3. Open iTunes, and navigate to your MacBook Air (M1, Late 2020).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the UniversalMac_12.0.1_21A559_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_12.0.1_21A559_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_12.0.1_21A559_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_12.0.1_21A559_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: aa422d3ef4a8a1a454e66db586fa71a940901943. 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_12.0.1_21A559_Restore.ipsw
  3. The output of the command should match the following checksum: aa422d3ef4a8a1a454e66db586fa71a940901943. 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_12.0.1_21A559_Restore.ipsw
  3. The output of the command should match the following checksum: aa422d3ef4a8a1a454e66db586fa71a940901943. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 3b8fcc1b674542a944fbefb69d29858b0728b1a829d18fd3d3e958691bc693bf
MD5sum 4d27e37df1215c90353a944da731dc14
SHA1sum aa422d3ef4a8a1a454e66db586fa71a940901943
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