iPadOS 18.1.1 (22B91) for iPad Air 4 (Cellular)

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iPad Air 4 (Cellular)

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

Your download should begin shortly. If it does not, you can download it directly here:

Download (7.6 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 Air 4 (Cellular) in to your PC.
  3. Open Apple Devices, and navigate to your iPad Air 4 (Cellular).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPad_Fall_2020_18.1.1_22B91_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPad Air 4 (Cellular) to reboot.

macOS

  1. Plug your iPad Air 4 (Cellular) in to your Mac.
  2. Navigate to your iPad Air 4 (Cellular) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPad_Fall_2020_18.1.1_22B91_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPad Air 4 (Cellular) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPad Air 4 (Cellular) 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_Fall_2020_18.1.1_22B91_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPad Air 4 (Cellular) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPad_Fall_2020_18.1.1_22B91_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: c919e2d0e96e584e38cb623db21e0dcc40596bca. 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_Fall_2020_18.1.1_22B91_Restore.ipsw
  3. The output of the command should match the following checksum: c919e2d0e96e584e38cb623db21e0dcc40596bca. 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_Fall_2020_18.1.1_22B91_Restore.ipsw
  3. The output of the command should match the following checksum: c919e2d0e96e584e38cb623db21e0dcc40596bca. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumefb2ddf3e13e501bacc43d3a06c0a4378cd63802ef761438171b9282611d21d2
MD5sumefb2ddf3e13e501bacc43d3a06c0a4378cd63802ef761438171b9282611d21d2
SHA1sumc919e2d0e96e584e38cb623db21e0dcc40596bca
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 security fixes and is recommended for all users.

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

https://support.apple.com/100100

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