macOS 11.3.1 (20E241) 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 (13 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_11.3.1_20E241_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_11.3.1_20E241_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_11.3.1_20E241_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_11.3.1_20E241_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: e6fd12bda1fd7267cad0c8189b00210ac4009a60. 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_11.3.1_20E241_Restore.ipsw
  3. The output of the command should match the following checksum: e6fd12bda1fd7267cad0c8189b00210ac4009a60. 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_11.3.1_20E241_Restore.ipsw
  3. The output of the command should match the following checksum: e6fd12bda1fd7267cad0c8189b00210ac4009a60. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum0ed07e6e1c0401f9e81f8f3a649466c40c5521ac9296f4cac9962e425ed84dfe
MD5sum0ed07e6e1c0401f9e81f8f3a649466c40c5521ac9296f4cac9962e425ed84dfe
SHA1sume6fd12bda1fd7267cad0c8189b00210ac4009a60
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