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MacBook Air (M1, Late 2020)

macOS 12.5.1 (21G83) 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_12.5.1_21G83_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_12.5.1_21G83_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_12.5.1_21G83_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_12.5.1_21G83_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 478eca5466157a6eef5cdba8f75884b224c6d3f6. 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_12.5.1_21G83_Restore.ipsw
  3. The output of the command should match the following checksum: 478eca5466157a6eef5cdba8f75884b224c6d3f6. 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_12.5.1_21G83_Restore.ipsw
  3. The output of the command should match the following checksum: 478eca5466157a6eef5cdba8f75884b224c6d3f6. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 97a5c61e21e9ddf25158ec9dca67b482205f9dd311d274a1a59915b4bb042c83
MD5sum 3d5f06ed500a29f29f82318e0e7fbe4b
SHA1sum 478eca5466157a6eef5cdba8f75884b224c6d3f6
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