IPSW Downloads

iPadOS 8.1.2 - 12B440 for 4th Gen iPad GSM+LTE

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

Release Date09 December 2014
Upload Date05 December 2014
File NameiPad3,5_8.1.2_12B440_Restore.ipsw
File Size1.71 GB
SHA256sum5c9e49a8bde647ef81baceeea8c246554e4197fba27e910be98b5bc45e388bd2
MD5sum16c52f2628fdeca73b177f0083d7fa5f
SHA1sum62d6f787f58f12dda16dd533a3380c4968e48bae
IdentifieriPad3,5

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your 4th Gen iPad GSM+LTE to your PC.
  3. Open iTunes and navigate to your 4th Gen iPad GSM+LTE.
  4. Hold the Shift key and click "Restore".
  5. Select the iPad3,5_8.1.2_12B440_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your 4th Gen iPad GSM+LTE to reboot.

macOS

  1. Connect your 4th Gen iPad GSM+LTE to your Mac.
  2. Navigate to your 4th Gen iPad GSM+LTE in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPad3,5_8.1.2_12B440_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your 4th Gen iPad GSM+LTE to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your 4th Gen iPad GSM+LTE 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 iPad3,5_8.1.2_12B440_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your 4th Gen iPad GSM+LTE to reboot.