iOS 17.5.1 (21F90) for iPhone 15 Pro

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iPhone 15 Pro

✗ 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 (7.7 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 15 Pro in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 15 Pro.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone16,1_17.5.1_21F90_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 15 Pro to reboot.

macOS

  1. Plug your iPhone 15 Pro in to your Mac.
  2. Navigate to your iPhone 15 Pro in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone16,1_17.5.1_21F90_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 15 Pro to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 15 Pro 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 iPhone16,1_17.5.1_21F90_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 15 Pro to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone16,1_17.5.1_21F90_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 3cc414ecf5d29fc7f8fb5cf3cf3733c3bae64b60. 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 iPhone16,1_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: 3cc414ecf5d29fc7f8fb5cf3cf3733c3bae64b60. 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 iPhone16,1_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: 3cc414ecf5d29fc7f8fb5cf3cf3733c3bae64b60. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumf3c8cfaac1c636f661ecfc6e6483f2e73f25825d6a48290da2258015f946a3d2
MD5sumf3c8cfaac1c636f661ecfc6e6483f2e73f25825d6a48290da2258015f946a3d2
SHA1sum3cc414ecf5d29fc7f8fb5cf3cf3733c3bae64b60
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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