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iPhone 12 Pro Max

iOS 18.4.1 (22E252) for iPhone 12 Pro Max

✓ 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 (9.14 GB)

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Plug your iPhone 12 Pro Max in to your PC.
  3. Open iTunes, and navigate to your iPhone 12 Pro Max.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone13,4_18.4.1_22E252_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 12 Pro Max to reboot.

macOS

  1. Plug your iPhone 12 Pro Max in to your Mac.
  2. Navigate to your iPhone 12 Pro Max in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone13,4_18.4.1_22E252_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 12 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 12 Pro Max 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 iPhone13,4_18.4.1_22E252_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 12 Pro Max to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone13,4_18.4.1_22E252_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 0abbf2ab4143fcc61a818317bce7b6c9b0ed302c. 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 iPhone13,4_18.4.1_22E252_Restore.ipsw
  3. The output of the command should match the following checksum: 0abbf2ab4143fcc61a818317bce7b6c9b0ed302c. 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 iPhone13,4_18.4.1_22E252_Restore.ipsw
  3. The output of the command should match the following checksum: 0abbf2ab4143fcc61a818317bce7b6c9b0ed302c. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum bef2d09000d6a43faac5c2731c948fe69cf6680401cb1f9e5be513a7d93b9274
MD5sum 485a04b973f9bc9679c4168248e6a091
SHA1sum 0abbf2ab4143fcc61a818317bce7b6c9b0ed302c
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides important bug fixes, security updates, and addresses a rare issue that prevents wireless CarPlay connection in certain vehicles.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/100100

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