macOS 15.6.1 (24G90) for Mac Studio (M2 Ultra, 2023)

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Mac Studio (M2 Ultra, 2023)

✓ 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 (16 GiB)

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your Mac Studio (M2 Ultra, 2023) in to your PC.
  3. Open Apple Devices, and navigate to your Mac Studio (M2 Ultra, 2023).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the UniversalMac_15.6.1_24G90_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the Mac Studio (M2 Ultra, 2023) to reboot.

macOS

  1. Plug your Mac Studio (M2 Ultra, 2023) in to your Mac.
  2. Navigate to your Mac Studio (M2 Ultra, 2023) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the UniversalMac_15.6.1_24G90_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the Mac Studio (M2 Ultra, 2023) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your Mac Studio (M2 Ultra, 2023) 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_15.6.1_24G90_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the Mac Studio (M2 Ultra, 2023) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash UniversalMac_15.6.1_24G90_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: a19ba56bb931769580060647a466c5b2d09da761. 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_15.6.1_24G90_Restore.ipsw
  3. The output of the command should match the following checksum: a19ba56bb931769580060647a466c5b2d09da761. 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_15.6.1_24G90_Restore.ipsw
  3. The output of the command should match the following checksum: a19ba56bb931769580060647a466c5b2d09da761. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum3d87686b691ac765eb6a6b3082b2334e2af9710096a00432dd519af89ff2ea78
MD5sum3d87686b691ac765eb6a6b3082b2334e2af9710096a00432dd519af89ff2ea78
SHA1suma19ba56bb931769580060647a466c5b2d09da761
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