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iPhone 8 Plus (GSM)

iOS 16.5.1 (20F75) for iPhone 8 Plus (GSM)

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

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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_16.5.1_20F75_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_16.5.1_20F75_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_16.5.1_20F75_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_16.5.1_20F75_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 01d7e8c31818d3c7043ab60bbb52971e9015f8b7. 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_16.5.1_20F75_Restore.ipsw
  3. The output of the command should match the following checksum: 01d7e8c31818d3c7043ab60bbb52971e9015f8b7. 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_16.5.1_20F75_Restore.ipsw
  3. The output of the command should match the following checksum: 01d7e8c31818d3c7043ab60bbb52971e9015f8b7. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 8d553b083bd9ce616537000457d39131b61b20de87ba924b840729b452804549
MD5sum a8652882edf05a8ccf8091fb9b97d98e
SHA1sum 01d7e8c31818d3c7043ab60bbb52971e9015f8b7
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. It also fixes an issue that prevents charging with the Lightning to USB 3 Camera Adapter.

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

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

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