iOS 16.3.1 (20D67) for iPhone 8 Plus (GSM)

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iPhone 8 Plus (GSM)

✗ 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 (5.5 GiB)

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 iPhone 8 Plus (GSM) in to your PC.
  3. Open Apple Devices, 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_16.3.1_20D67_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_16.3.1_20D67_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_16.3.1_20D67_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_16.3.1_20D67_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: b0fd82b25f7e8e84b47a126fd66d55081a37a743. 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_16.3.1_20D67_Restore.ipsw
  3. The output of the command should match the following checksum: b0fd82b25f7e8e84b47a126fd66d55081a37a743. 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_16.3.1_20D67_Restore.ipsw
  3. The output of the command should match the following checksum: b0fd82b25f7e8e84b47a126fd66d55081a37a743. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum40c7d12072bb391e044171c3426ea5ea2c5f72cd0c7046868119f8252d72f455
MD5sum40c7d12072bb391e044171c3426ea5ea2c5f72cd0c7046868119f8252d72f455
SHA1sumb0fd82b25f7e8e84b47a126fd66d55081a37a743
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 for your iPhone including:

  • iCloud settings may be unresponsive or incorrectly display if apps are using iCloud

  • Siri requests for Find My may not work

  • Crash Detection optimizations on iPhone 14 and iPhone 14 Pro models

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

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

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