macOS 27.2 (26B123) for iMac 24-inch (M1, Four Ports, 2021) iMac 24-inch (M1, Four Ports, 2021)

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✓ 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 (24 GiB)

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iMac 24-inch (M1, Four Ports, 2021) in to your PC.
  3. Open Apple Devices, and navigate to your iMac 24-inch (M1, Four Ports, 2021).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the UniversalMac_27.2_26B123_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iMac 24-inch (M1, Four Ports, 2021) to reboot.

macOS

  1. Plug your iMac 24-inch (M1, Four Ports, 2021) in to your Mac.
  2. Navigate to your iMac 24-inch (M1, Four Ports, 2021) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the UniversalMac_27.2_26B123_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iMac 24-inch (M1, Four Ports, 2021) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iMac 24-inch (M1, Four Ports, 2021) 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_27.2_26B123_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iMac 24-inch (M1, Four Ports, 2021) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash UniversalMac_27.2_26B123_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 617360e5619dbb424ed3774b98732bb3cfeacc0b. 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_27.2_26B123_Restore.ipsw
  3. The output of the command should match the following checksum: 617360e5619dbb424ed3774b98732bb3cfeacc0b. 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_27.2_26B123_Restore.ipsw
  3. The output of the command should match the following checksum: 617360e5619dbb424ed3774b98732bb3cfeacc0b. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum6613b34e8589db2202a01ec37a2648afb141ece13428175183f8f3e38438534f
MD5sum819227d6e82c48faf880125c52ea4f95
SHA1sum617360e5619dbb424ed3774b98732bb3cfeacc0b
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