IPSW Downloads

iPadOS 8.1.3 - 12B466 for iPad Air (WiFi)

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

Release Date27 January 2015
Upload Date19 January 2015
File NameiPad4,1_8.1.3_12B466_Restore.ipsw
File Size1.89 GB
SHA256sum7ccc8671d4a3461385a1b6539410692ac449e9c8255388e4684a13f0838561b0
MD5sum239ed6075c9af7b867857b04314e11bd
SHA1sum559125d2490ae84e66f2d8be172a7b767e8ebd3b
IdentifieriPad4,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPad Air (WiFi) to your PC.
  3. Open iTunes and navigate to your iPad Air (WiFi).
  4. Hold the Shift key and click "Restore".
  5. Select the iPad4,1_8.1.3_12B466_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPad Air (WiFi) to reboot.

macOS

  1. Connect your iPad Air (WiFi) to your Mac.
  2. Navigate to your iPad Air (WiFi) in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPad4,1_8.1.3_12B466_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPad Air (WiFi) to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPad Air (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 iPad4,1_8.1.3_12B466_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPad Air (WiFi) to reboot.