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Mac Studio (M1 Ultra)

macOS 13.5 (22G74) 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 (12.9 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_13.5_22G74_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_13.5_22G74_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_13.5_22G74_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_13.5_22G74_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: bb9eac118d987b43ac0f5b5fcbe496822a2e033a. 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_13.5_22G74_Restore.ipsw
  3. The output of the command should match the following checksum: bb9eac118d987b43ac0f5b5fcbe496822a2e033a. 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_13.5_22G74_Restore.ipsw
  3. The output of the command should match the following checksum: bb9eac118d987b43ac0f5b5fcbe496822a2e033a. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum a42a5ba126a4a35bae9f3dcd64565abc2232e9f3954c658cf5cab5bd92f9d191
MD5sum b0d2687b153efb321c57fe366f707ae4
SHA1sum bb9eac118d987b43ac0f5b5fcbe496822a2e033a
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