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iPad Pro (11-inch, Cellular) (3rd generation)

iPadOS 15.3.1 (19D52) for iPad Pro (11-inch, Cellular) (3rd generation)

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

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✗ 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 iPad Pro (11-inch, Cellular) (3rd generation) in to your PC.
  3. Open iTunes, and navigate to your iPad Pro (11-inch, Cellular) (3rd generation).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPad_Pro_Spring_2021_15.3.1_19D52_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPad Pro (11-inch, Cellular) (3rd generation) to reboot.

macOS

  1. Plug your iPad Pro (11-inch, Cellular) (3rd generation) in to your Mac.
  2. Navigate to your iPad Pro (11-inch, Cellular) (3rd generation) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPad_Pro_Spring_2021_15.3.1_19D52_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPad Pro (11-inch, Cellular) (3rd generation) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPad Pro (11-inch, Cellular) (3rd 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 iPad_Pro_Spring_2021_15.3.1_19D52_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPad Pro (11-inch, Cellular) (3rd generation) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPad_Pro_Spring_2021_15.3.1_19D52_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 233c790c21d888883adb838720a46fd617ea9248. 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_Pro_Spring_2021_15.3.1_19D52_Restore.ipsw
  3. The output of the command should match the following checksum: 233c790c21d888883adb838720a46fd617ea9248. 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_Pro_Spring_2021_15.3.1_19D52_Restore.ipsw
  3. The output of the command should match the following checksum: 233c790c21d888883adb838720a46fd617ea9248. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 9a38b2ff080ef67f4df4a66191cc5864a419686048eba9c0a315fb81e9f32047
MD5sum 98a12538bd706da8dd8ae370d8ace371
SHA1sum 233c790c21d888883adb838720a46fd617ea9248
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iPadOS 15.3.1 provides important security updates for your iPad and fixes an issue that may cause Braille displays to stop responding.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222

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