iOS 26.3.1 (23D8133) for iPhone 11

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iPhone 11

✓ 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 (8.9 GiB)

Windows

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

macOS

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

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 11 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 iPhone12,1_26.3.1_23D8133_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 11 to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone12,1_26.3.1_23D8133_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 67b059db5a597c00574c14b35fb5756066cfe1f1. 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 iPhone12,1_26.3.1_23D8133_Restore.ipsw
  3. The output of the command should match the following checksum: 67b059db5a597c00574c14b35fb5756066cfe1f1. 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 iPhone12,1_26.3.1_23D8133_Restore.ipsw
  3. The output of the command should match the following checksum: 67b059db5a597c00574c14b35fb5756066cfe1f1. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum57905a2176dcccde68f44993cc0132924b7982419824ca788967fa6238587bd9
MD5sum57905a2176dcccde68f44993cc0132924b7982419824ca788967fa6238587bd9
SHA1sum67b059db5a597c00574c14b35fb5756066cfe1f1
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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