IPSW Downloads

iPadOS 8.1 - 12B410 for iPad Air (GSM+CDMA)

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

Release Date20 October 2014
Upload Date13 October 2014
File NameiPad4,2_8.1_12B410_Restore.ipsw
File Size2.08 GB
SHA256sum5728e0c4db209d6dbc8f2cb1fa99106f4d4a04c3fc762eaf3ec38b4012ec5c78
MD5sum1a3bb68775b91be0903bdfaef21b3e49
SHA1sumb47702ef596e08d1db6edec413842cef600aeead
IdentifieriPad4,2

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPad Air (GSM+CDMA) to your PC.
  3. Open iTunes and navigate to your iPad Air (GSM+CDMA).
  4. Hold the Shift key and click "Restore".
  5. Select the iPad4,2_8.1_12B410_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPad Air (GSM+CDMA) to reboot.

macOS

  1. Connect your iPad Air (GSM+CDMA) to your Mac.
  2. Navigate to your iPad Air (GSM+CDMA) in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPad4,2_8.1_12B410_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPad Air (GSM+CDMA) to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPad Air (GSM+CDMA) 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 iPad4,2_8.1_12B410_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPad Air (GSM+CDMA) to reboot.