IPSW Downloads

iPodOS 5.1 - 9B176 for 4th Gen iPod

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

Release DateInvalid Date
Upload Date29 February 2012
File NameiPod4,1_5.1_9B176_Restore.ipsw
File Size0.73 GB
SHA256sum22022f4bb003deb24189063692c478d74275dcb1e1b2b7df30cbe6d01048b167
MD5sum3eeb95d6b80b50d33708471d2e1b9306
SHA1sum65d7ee2d2fa505ce6fe91271f84f3fc9cbcc81a1
IdentifieriPod4,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your 4th Gen iPod to your PC.
  3. Open iTunes and navigate to your 4th Gen iPod.
  4. Hold the Shift key and click "Restore".
  5. Select the iPod4,1_5.1_9B176_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your 4th Gen iPod to reboot.

macOS

  1. Connect your 4th Gen iPod to your Mac.
  2. Navigate to your 4th Gen iPod in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPod4,1_5.1_9B176_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your 4th Gen iPod to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your 4th Gen iPod 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 iPod4,1_5.1_9B176_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your 4th Gen iPod to reboot.