iOS 17.5.1 (21F90) for iPhone XR

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iPhone XR

✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

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Download (7.1 GiB)

This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore. The instructions below are included for reference only.

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone XR in to your PC.
  3. Open Apple Devices, and navigate to your iPhone XR.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone11,8_17.5.1_21F90_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone XR to reboot.

macOS

  1. Plug your iPhone XR in to your Mac.
  2. Navigate to your iPhone XR in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone11,8_17.5.1_21F90_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone XR to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone XR 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 iPhone11,8_17.5.1_21F90_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone XR to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone11,8_17.5.1_21F90_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 6c572fd739b4fec6559d9bc00c2eb95267d48183. 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 iPhone11,8_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: 6c572fd739b4fec6559d9bc00c2eb95267d48183. 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 iPhone11,8_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: 6c572fd739b4fec6559d9bc00c2eb95267d48183. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum33708d1a45c05e9e078022956ea068c08005c6e8053e0f51954e4a20aa79848b
MD5sum33708d1a45c05e9e078022956ea068c08005c6e8053e0f51954e4a20aa79848b
SHA1sum6c572fd739b4fec6559d9bc00c2eb95267d48183
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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