IPSW Downloads

iPadOS 8.1.2 - 12B440 for 4th Gen iPad

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

Release Date09 December 2014
Upload Date05 December 2014
File NameiPad3,4_8.1.2_12B440_Restore.ipsw
File Size1.67 GB
SHA256sumbd8033a7184b64ebc1f11cef464b368a219a086090f0a5d04702b5e63599be6a
MD5sum0afdd00c62644d74f3dc3d212bc512d2
SHA1sumac3820ddfb37996d54f6fd6a65104014696b6387
IdentifieriPad3,4

Installation Instructions

Windows

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

macOS

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

Linux

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