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iPhone 8 (GSM)

iOS 16.6.1 (20G81) for iPhone 8 (GSM)

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

Your download should begin shortly. If it does not, you can download it directly here:

Download (6.03 GB)

✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Plug your iPhone 8 (GSM) in to your PC.
  3. Open iTunes, and navigate to your iPhone 8 (GSM).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone_4.7_P3_16.6.1_20G81_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 8 (GSM) to reboot.

macOS

  1. Plug your iPhone 8 (GSM) in to your Mac.
  2. Navigate to your iPhone 8 (GSM) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone_4.7_P3_16.6.1_20G81_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 8 (GSM) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 8 (GSM) 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 iPhone_4.7_P3_16.6.1_20G81_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 8 (GSM) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone_4.7_P3_16.6.1_20G81_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 5820f19001915a548681f627611bbae5e564fcf3. 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 iPhone_4.7_P3_16.6.1_20G81_Restore.ipsw
  3. The output of the command should match the following checksum: 5820f19001915a548681f627611bbae5e564fcf3. 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 iPhone_4.7_P3_16.6.1_20G81_Restore.ipsw
  3. The output of the command should match the following checksum: 5820f19001915a548681f627611bbae5e564fcf3. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 815121855cb020fe3eec00b88f255d125f30488764a11512505fc9027ace5152
MD5sum f70a54edcb87d86721bf76615b847c86
SHA1sum 5820f19001915a548681f627611bbae5e564fcf3
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides important security fixes and is recommended for all users.

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222

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