macOS 15.6 (24G84) 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 (16 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_15.6_24G84_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_15.6_24G84_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_15.6_24G84_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_15.6_24G84_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 7dd9ab8dba1e088c297934f7d14a0df144f7ec91. 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_24G84_Restore.ipsw
  3. The output of the command should match the following checksum: 7dd9ab8dba1e088c297934f7d14a0df144f7ec91. 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_24G84_Restore.ipsw
  3. The output of the command should match the following checksum: 7dd9ab8dba1e088c297934f7d14a0df144f7ec91. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum8fbeaca047b66bcbc8ea557f2b3f95bcb84cd0f60cbfdadb52fc23ecfe671317
MD5sum8fbeaca047b66bcbc8ea557f2b3f95bcb84cd0f60cbfdadb52fc23ecfe671317
SHA1sum7dd9ab8dba1e088c297934f7d14a0df144f7ec91
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