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iPhone 8 Plus (GSM)

iOS 16.6 (20G75) for iPhone 8 Plus (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 (6.15 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 Plus (GSM) in to your PC.
  3. Open iTunes, and navigate to your iPhone 8 Plus (GSM).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone_5.5_P3_16.6_20G75_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 8 Plus (GSM) to reboot.

macOS

  1. Plug your iPhone 8 Plus (GSM) in to your Mac.
  2. Navigate to your iPhone 8 Plus (GSM) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone_5.5_P3_16.6_20G75_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 8 Plus (GSM) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 8 Plus (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_5.5_P3_16.6_20G75_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 8 Plus (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_5.5_P3_16.6_20G75_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 129dd3b2f90b82b9912abcff0f436990a42d6e3b. 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_5.5_P3_16.6_20G75_Restore.ipsw
  3. The output of the command should match the following checksum: 129dd3b2f90b82b9912abcff0f436990a42d6e3b. 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_5.5_P3_16.6_20G75_Restore.ipsw
  3. The output of the command should match the following checksum: 129dd3b2f90b82b9912abcff0f436990a42d6e3b. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 2e33768388ab67086e816d0e3f73c7ecf71daec7d3e350ad4ba059ae329e8692
MD5sum 2636ad4fdd87ccaa5e1e461f1771b131
SHA1sum 129dd3b2f90b82b9912abcff0f436990a42d6e3b
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 bug fixes and security updates 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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