IPSW Downloads

iPadOS 5.1 - 9B176 for 2nd Gen iPad New Revision

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

Release DateInvalid Date
Upload Date29 February 2012
File NameiPad2,4_5.1_9B176_Restore.ipsw
File Size0.71 GB
SHA256suma647d27e4bc12c6e5b3e3e9bc6e124b9a270d351e24faae0dd2b3ed4c67d5531
MD5sum7c664916eefd4729452afabe0b2b3e1e
SHA1sume559b325fe81279589343f3d2d8bf279247772f9
IdentifieriPad2,4

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your 2nd Gen iPad New Revision to your PC.
  3. Open iTunes and navigate to your 2nd Gen iPad New Revision.
  4. Hold the Shift key and click "Restore".
  5. Select the iPad2,4_5.1_9B176_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your 2nd Gen iPad New Revision to reboot.

macOS

  1. Connect your 2nd Gen iPad New Revision to your Mac.
  2. Navigate to your 2nd Gen iPad New Revision in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPad2,4_5.1_9B176_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your 2nd Gen iPad New Revision to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your 2nd Gen iPad New Revision 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 iPad2,4_5.1_9B176_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your 2nd Gen iPad New Revision to reboot.