iPadOS 17.5.1 (21F90) for iPad 6 (WiFi)

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iPad 6 (WiFi)

✗ 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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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 6 (WiFi) in to your PC.
  3. Open Apple Devices, and navigate to your iPad 6 (WiFi).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPad_64bit_TouchID_ASTC_17.5.1_21F90_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPad 6 (WiFi) to reboot.

macOS

  1. Plug your iPad 6 (WiFi) in to your Mac.
  2. Navigate to your iPad 6 (WiFi) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPad_64bit_TouchID_ASTC_17.5.1_21F90_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPad 6 (WiFi) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPad 6 (WiFi) 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 iPad_64bit_TouchID_ASTC_17.5.1_21F90_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPad 6 (WiFi) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPad_64bit_TouchID_ASTC_17.5.1_21F90_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: d240b9d2165d7ff6d18427eec405469b4c1bf5ce. 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 iPad_64bit_TouchID_ASTC_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: d240b9d2165d7ff6d18427eec405469b4c1bf5ce. 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 iPad_64bit_TouchID_ASTC_17.5.1_21F90_Restore.ipsw
  3. The output of the command should match the following checksum: d240b9d2165d7ff6d18427eec405469b4c1bf5ce. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumb4b44d0d8ce597d8e0d8d910384ba18fc2c253c9f3fea17277d14bd41990792e
MD5sumb4b44d0d8ce597d8e0d8d910384ba18fc2c253c9f3fea17277d14bd41990792e
SHA1sumd240b9d2165d7ff6d18427eec405469b4c1bf5ce
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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