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iPhone XS Max

iOS 17.5.1 (21F90) for iPhone XS Max

✗ This firmware is not signed. This means you cannot restore to it in iTunes.

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Download (7.8 GB)

✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Plug your iPhone XS Max in to your PC.
  3. Open iTunes, and navigate to your iPhone XS Max.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone XS Max to reboot.

macOS

  1. Plug your iPhone XS Max in to your Mac.
  2. Navigate to your iPhone XS Max in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone XS Max to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone XS 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 iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone XS Max to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 81b4899c48b079b5112f4958ccb8a61f24c789b1. 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 iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: 81b4899c48b079b5112f4958ccb8a61f24c789b1. 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 iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: 81b4899c48b079b5112f4958ccb8a61f24c789b1. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 7d7b7b30551530e4b95d3bdba9ac28e8a39ec1500bfe0674422cbfaabf68eb9e
MD5sum 9a099d38f67e68f04a7ae1dd9ab6ce55
SHA1sum 81b4899c48b079b5112f4958ccb8a61f24c789b1
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 and addresses a rare issue where photos that experienced database corruption could reappear in the Photos library even if they were deleted.

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