macOS 26.1 (25B78) for iMac 24-inch (M1, Four Ports, 2021)

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iMac 24-inch (M1, Four Ports, 2021)

✓ 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 (17 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_26.1_25B78_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_26.1_25B78_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_26.1_25B78_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_26.1_25B78_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 479d6bb78f069062ca016d496fd50804b673e815. 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_26.1_25B78_Restore.ipsw
  3. The output of the command should match the following checksum: 479d6bb78f069062ca016d496fd50804b673e815. 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_26.1_25B78_Restore.ipsw
  3. The output of the command should match the following checksum: 479d6bb78f069062ca016d496fd50804b673e815. If it doesn't, you may need to redownload the file.

Checksums

SHA256sume0217b3cd0f2edb9ab3294480bef5af2a0be43e86d84a15fab6bca31d3802ee8
MD5sume0217b3cd0f2edb9ab3294480bef5af2a0be43e86d84a15fab6bca31d3802ee8
SHA1sum479d6bb78f069062ca016d496fd50804b673e815
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