iPad Air 2 (Cellular)

iOS 11.4.1 (15G77) for iPad Air 2 (Cellular)

✗ 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 Air 2 (Cellular) in to your PC.
  3. Open iTunes, and navigate to your iPad Air 2 (Cellular).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPad_64bit_TouchID_11.4.1_15G77_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPad Air 2 (Cellular) to reboot.

macOS

  1. Plug your iPad Air 2 (Cellular) in to your Mac.
  2. Navigate to your iPad Air 2 (Cellular) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPad_64bit_TouchID_11.4.1_15G77_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPad Air 2 (Cellular) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPad Air 2 (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_64bit_TouchID_11.4.1_15G77_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPad Air 2 (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_64bit_TouchID_11.4.1_15G77_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 3f5c6195297bf9c130439aa71b28310911e55760. 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_11.4.1_15G77_Restore.ipsw
  3. The output of the command should match the following checksum: 3f5c6195297bf9c130439aa71b28310911e55760. 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_11.4.1_15G77_Restore.ipsw
  3. The output of the command should match the following checksum: 3f5c6195297bf9c130439aa71b28310911e55760. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum b720738e8b2f1ca2529c82176b848abd3d44a0f3128c5a8eea42b6fb0a69081b
MD5sum 5456439d11394db65c0d91d1434b4844
SHA1sum 3f5c6195297bf9c130439aa71b28310911e55760
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 11.4.1 includes bug fixes and improves the security of your iPhone or iPad. This update:

  • Fixes an issue that prevented some users from viewing the last known location of their AirPods in Find My iPhone
  • Improves reliability of syncing mail, contacts and notes with Exchange accounts

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

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

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