iOS 12.3.1 (16F203) for iPhone 8 (Global)

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iPhone 8 (Global)

✗ 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 (3.2 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 (Global) in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 8 (Global).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone_4.7_P3_12.3.1_16F203_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 8 (Global) to reboot.

macOS

  1. Plug your iPhone 8 (Global) in to your Mac.
  2. Navigate to your iPhone 8 (Global) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone_4.7_P3_12.3.1_16F203_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 8 (Global) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 8 (Global) 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_12.3.1_16F203_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 8 (Global) 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_12.3.1_16F203_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: ff876bff2a63d71ce7f926e14ba925556713fec9. 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_12.3.1_16F203_Restore.ipsw
  3. The output of the command should match the following checksum: ff876bff2a63d71ce7f926e14ba925556713fec9. 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_12.3.1_16F203_Restore.ipsw
  3. The output of the command should match the following checksum: ff876bff2a63d71ce7f926e14ba925556713fec9. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumf84eeebedabbd604fff77f0782e0c19a35a3ab9c20cc33f9606daed55e9d89c7
MD5sumf84eeebedabbd604fff77f0782e0c19a35a3ab9c20cc33f9606daed55e9d89c7
SHA1sumff876bff2a63d71ce7f926e14ba925556713fec9
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 12.3.1 includes bug fixes for your iPhone and iPad. This update:

  • Fixes an issue that could prevent making or receiving VoLTE calls

  • Fixes issues in Messages that could cause messages from unknown senders to appear in your conversation list even though Filter Unknown Senders is enabled

  • Fixes an issue that could prevent the Report Junk link from appearing in Messages threads from unknown senders

For information on the security content of this update, please visit this website: https://support.apple.com/kb/HT201222

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