1 Choose a product
2 Choose a platform
3 Choose a version
4 Download
MacBook Air (M1, Late 2020)

macOS 12.2.1 (21D62) for MacBook Air (M1, Late 2020)

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

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

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_12.2.1_21D62_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_12.2.1_21D62_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_12.2.1_21D62_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_12.2.1_21D62_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: acb57f8af1cd1a62f3d1a5a0010cc18a97ff308f. 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_12.2.1_21D62_Restore.ipsw
  3. The output of the command should match the following checksum: acb57f8af1cd1a62f3d1a5a0010cc18a97ff308f. 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_12.2.1_21D62_Restore.ipsw
  3. The output of the command should match the following checksum: acb57f8af1cd1a62f3d1a5a0010cc18a97ff308f. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 0f33f36f4d01b022e71f7a3a39fc34b67000109f9ec13762f1a39984cef00a46
MD5sum 85b6a7a2757ceee9a51a487b26cf877d
SHA1sum acb57f8af1cd1a62f3d1a5a0010cc18a97ff308f
Bluesky Mastodon r/jailbreak Twitter