iOS 26.3.1 (23D8133) for iPhone 11 Pro Max

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iPhone 11 Pro Max

✓ 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 (9.1 GiB)

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone 11 Pro Max in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 11 Pro Max.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone12,3,iPhone12,5_26.3.1_23D8133_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 11 Pro Max to reboot.

macOS

  1. Plug your iPhone 11 Pro Max in to your Mac.
  2. Navigate to your iPhone 11 Pro Max in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone12,3,iPhone12,5_26.3.1_23D8133_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 11 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 11 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 iPhone12,3,iPhone12,5_26.3.1_23D8133_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 11 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 iPhone12,3,iPhone12,5_26.3.1_23D8133_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: aeacc3af9de74c86c0489cfb193a6ec6dc4448b1. 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 iPhone12,3,iPhone12,5_26.3.1_23D8133_Restore.ipsw
  3. The output of the command should match the following checksum: aeacc3af9de74c86c0489cfb193a6ec6dc4448b1. 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 iPhone12,3,iPhone12,5_26.3.1_23D8133_Restore.ipsw
  3. The output of the command should match the following checksum: aeacc3af9de74c86c0489cfb193a6ec6dc4448b1. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumbf2f71dec2a898922bf2938de572f89499e22d88a91f43c27ecf039a7f43dd6b
MD5sumbf2f71dec2a898922bf2938de572f89499e22d88a91f43c27ecf039a7f43dd6b
SHA1sumaeacc3af9de74c86c0489cfb193a6ec6dc4448b1
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides bug fixes for your iPhone

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

https://support.apple.com/100100

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