iPadOS 17.5.1 (21F90) for iPad Pro (12.9-inch, Cellular) (6th generation)

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iPad Pro (12.9-inch, Cellular) (6th generation)

✗ 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 (7.3 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 iPad Pro (12.9-inch, Cellular) (6th generation) in to your PC.
  3. Open Apple Devices, and navigate to your iPad Pro (12.9-inch, Cellular) (6th generation).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPad14,3,iPad14,4,iPad14,5,iPad14,6_17.5.1_21F90_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPad Pro (12.9-inch, Cellular) (6th generation) to reboot.

macOS

  1. Plug your iPad Pro (12.9-inch, Cellular) (6th generation) in to your Mac.
  2. Navigate to your iPad Pro (12.9-inch, Cellular) (6th generation) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPad14,3,iPad14,4,iPad14,5,iPad14,6_17.5.1_21F90_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPad Pro (12.9-inch, Cellular) (6th generation) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPad Pro (12.9-inch, Cellular) (6th generation) 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 iPad14,3,iPad14,4,iPad14,5,iPad14,6_17.5.1_21F90_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPad Pro (12.9-inch, Cellular) (6th generation) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPad14,3,iPad14,4,iPad14,5,iPad14,6_17.5.1_21F90_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 278ff4d954418fb9058e03915a447c89e152c8ff. 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 iPad14,3,iPad14,4,iPad14,5,iPad14,6_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: 278ff4d954418fb9058e03915a447c89e152c8ff. 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 iPad14,3,iPad14,4,iPad14,5,iPad14,6_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: 278ff4d954418fb9058e03915a447c89e152c8ff. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum183e735b187ea3f73e4b3dad13fc2a92e548f6f07e4d4fbba2f8150c18fdf83c
MD5sum183e735b187ea3f73e4b3dad13fc2a92e548f6f07e4d4fbba2f8150c18fdf83c
SHA1sum278ff4d954418fb9058e03915a447c89e152c8ff
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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