iOS 4.3.1 (8G4) for iPod touch 4

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iPod touch 4

✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

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Download (650 MiB)

This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore. The instructions below are included for reference only.

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPod touch 4 in to your PC.
  3. Open Apple Devices, and navigate to your iPod touch 4.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPod4,1_4.3.1_8G4_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPod touch 4 to reboot.

macOS

  1. Plug your iPod touch 4 in to your Mac.
  2. Navigate to your iPod touch 4 in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPod4,1_4.3.1_8G4_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPod touch 4 to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPod touch 4 in to your PC.
  3. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  4. To perform a full erase restore, type idevicerestore -e iPod4,1_4.3.1_8G4_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPod touch 4 to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPod4,1_4.3.1_8G4_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 4a395e045a722de53e78e7aa7584a5201f455b5c. If it doesn't, you may need to redownload the file.

macOS

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 iPod4,1_4.3.1_8G4_Restore.ipsw
  3. The output of the command should match the following checksum: 4a395e045a722de53e78e7aa7584a5201f455b5c. If it doesn't, you may need to redownload the file.

Linux

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 iPod4,1_4.3.1_8G4_Restore.ipsw
  3. The output of the command should match the following checksum: 4a395e045a722de53e78e7aa7584a5201f455b5c. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum86627a351e5cf4bcea278ed62f6e4b1f6dbecd75e7cbb3a697e201c0e77b045c
MD5sum86627a351e5cf4bcea278ed62f6e4b1f6dbecd75e7cbb3a697e201c0e77b045c
SHA1sum4a395e045a722de53e78e7aa7584a5201f455b5c
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 4.3.1 Software Update

This update contains improvements and other bug fixes including:

• Fixes an occasional graphics glitch on iPod touch (4th generation)

• Resolves bugs related to activating and connecting to some cellular networks

• Fixes image flicker when using Apple Digital AV Adapter with some TVs

• Resolves an issue authenticating with some enterprise web services

Products compatible with this software update:

• iPhone 4 (GSM model)

• iPhone 3GS

• iPad 2

• iPad

• iPod touch (4th generation)

• iPod touch (3rd generation)

This update contains security content originally included in previous iOS Software Updates. For more information, please visit this website:

http://support.apple.com/kb/HT1222

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