IPSW Downloads

iPadOS 15.1 - 19B74 for iPad Air 4th Gen (WiFi)

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

Release Date25 October 2021
Upload Date15 October 2021
File NameiPad_Fall_2020_15.1_19B74_Restore.ipsw
File Size5.43 GB
SHA256sumbcde0dba775219f183ee17e2179e6a61a8737a4e0c7b88bea7853a698774d9e1
MD5sum82ad63193f00305dd5e8846ef3df19f8
SHA1sumc37839c73b65ddb3fb04c52aad6b14372d5142b8
IdentifieriPad13,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPad Air 4th Gen (WiFi) to your PC.
  3. Open iTunes and navigate to your iPad Air 4th Gen (WiFi).
  4. Hold the Shift key and click "Restore".
  5. Select the iPad_Fall_2020_15.1_19B74_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPad Air 4th Gen (WiFi) to reboot.

macOS

  1. Connect your iPad Air 4th Gen (WiFi) to your Mac.
  2. Navigate to your iPad Air 4th Gen (WiFi) in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPad_Fall_2020_15.1_19B74_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPad Air 4th Gen (WiFi) to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPad Air 4th Gen (WiFi) to your PC.
  3. Open a terminal and navigate to the IPSW file you downloaded, e.g., cd ~/Downloads.
  4. To perform a full erase restore, type idevicerestore -e iPad_Fall_2020_15.1_19B74_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPad Air 4th Gen (WiFi) to reboot.