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Mac Studio (M1 Ultra)

macOS 12.5 (21G72) for Mac Studio (M1 Ultra)

✓ 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 Mac Studio (M1 Ultra) in to your PC.
  3. Open iTunes, and navigate to your Mac Studio (M1 Ultra).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the UniversalMac_12.5_21G72_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the Mac Studio (M1 Ultra) to reboot.

macOS

  1. Plug your Mac Studio (M1 Ultra) in to your Mac.
  2. Navigate to your Mac Studio (M1 Ultra) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the UniversalMac_12.5_21G72_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the Mac Studio (M1 Ultra) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your Mac Studio (M1 Ultra) 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_21G72_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the Mac Studio (M1 Ultra) 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_21G72_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: c61f6d5411a5ce703fde89c07d6a963863e4cf67. 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_21G72_Restore.ipsw
  3. The output of the command should match the following checksum: c61f6d5411a5ce703fde89c07d6a963863e4cf67. 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_21G72_Restore.ipsw
  3. The output of the command should match the following checksum: c61f6d5411a5ce703fde89c07d6a963863e4cf67. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 49eb74f3313b0b0c22d4c055f56722143fdae1e5ccb1dcbf779a1a4c4dcbc42b
MD5sum a06025227136e75af4e2bc7511f8acf5
SHA1sum c61f6d5411a5ce703fde89c07d6a963863e4cf67
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