IPSW Downloads

iPadOS 5.1 - 9B176 for iPad

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

Release DateInvalid Date
Upload Date29 February 2012
File NameiPad1,1_5.1_9B176_Restore.ipsw
File Size0.71 GB
SHA256sum8ee1bc5f49f8adb299e2b34ddbb41056333cde794714fac3db89aa0e9d01a1ad
MD5sum1259442021913f1d9f0fffd006e3d0de
SHA1sumf6b19779d2fe4242f87d55701e049291c978e3b3
IdentifieriPad1,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPad to your PC.
  3. Open iTunes and navigate to your iPad.
  4. Hold the Shift key and click "Restore".
  5. Select the iPad1,1_5.1_9B176_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPad to reboot.

macOS

  1. Connect your iPad to your Mac.
  2. Navigate to your iPad in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPad1,1_5.1_9B176_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPad to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your 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 iPad1,1_5.1_9B176_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPad to reboot.