iOS 12.3.1 (16F203) for iPhone XS

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iPhone XS

✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.

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

Download (3.4 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 XS in to your PC.
  3. Open Apple Devices, and navigate to your iPhone XS.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone11,2_12.3.1_16F203_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone XS to reboot.

macOS

  1. Plug your iPhone XS in to your Mac.
  2. Navigate to your iPhone XS in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone11,2_12.3.1_16F203_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone XS to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone XS 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 iPhone11,2_12.3.1_16F203_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone XS to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone11,2_12.3.1_16F203_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: e05dd6c9bfeb17f16a4bfe2088c8d296494521e3. 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 iPhone11,2_12.3.1_16F203_Restore.ipsw
  3. The output of the command should match the following checksum: e05dd6c9bfeb17f16a4bfe2088c8d296494521e3. 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 iPhone11,2_12.3.1_16F203_Restore.ipsw
  3. The output of the command should match the following checksum: e05dd6c9bfeb17f16a4bfe2088c8d296494521e3. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumcdde8684d8b6218a31f61dde57a485820d63685142cd6eb442ba6dcc3b99d987
MD5sumcdde8684d8b6218a31f61dde57a485820d63685142cd6eb442ba6dcc3b99d987
SHA1sume05dd6c9bfeb17f16a4bfe2088c8d296494521e3
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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