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iPad Air 4 (WiFi)

iPadOS 17.5 (21F79) for iPad Air 4 (WiFi)

✗ 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 4 (WiFi) in to your PC.
  3. Open iTunes, and navigate to your iPad Air 4 (WiFi).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPad_Fall_2020_17.5_21F79_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPad Air 4 (WiFi) to reboot.

macOS

  1. Plug your iPad Air 4 (WiFi) in to your Mac.
  2. Navigate to your iPad Air 4 (WiFi) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPad_Fall_2020_17.5_21F79_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPad Air 4 (WiFi) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPad Air 4 (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_Fall_2020_17.5_21F79_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPad Air 4 (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_Fall_2020_17.5_21F79_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: ddb2353c5ba4294d593684f5dd673bb1ec51a4b8. 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_17.5_21F79_Restore.ipsw
  3. The output of the command should match the following checksum: ddb2353c5ba4294d593684f5dd673bb1ec51a4b8. 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_17.5_21F79_Restore.ipsw
  3. The output of the command should match the following checksum: ddb2353c5ba4294d593684f5dd673bb1ec51a4b8. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum eb2e8419f0a60f684048578e574db8491753d777ee0819e22157cb1e8b16bc0b
MD5sum 3a96daf5a89e7f0a080ac9c7f72e847d
SHA1sum ddb2353c5ba4294d593684f5dd673bb1ec51a4b8
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

Emoji

  • New mushroom, phoenix, lime, broken chain, and shaking heads emoji are available in the emoji keyboard
  • 18 people and body emoji add the option to face them in either direction

Apple Podcasts

  • Transcripts let you follow an episode with text that highlights in sync with the audio in English, Spanish, French and German
  • Episode text can be read in full, searched for a word or phrase, tapped to play from a specific point and used with accessibility features such as Text Size, Increase Contrast, and VoiceOver

This update also includes the following enhancements and bug fixes:

  • Music recognition lets you add songs you have identified to your Apple Music Playlists and Library
  • Business updates you opt into keep you informed of order status, flight notifications, fraud alerts or other transactions from trusted businesses in Messages for Business
  • Apple Cash virtual card numbers enable you to pay with Apple Cash at merchants that don’t yet accept Apple Pay by typing in your number from Wallet or using Safari AutoFill
  • Fixes an issue where contact pictures are blank in Find My
  • Safari Favorites Bar adds an option to show only icons for websites

Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222

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