iOS 12.3.1 (16F203) for iPhone XS Max (China)

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iPhone XS Max (China)

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

macOS

  1. Plug your iPhone XS Max (China) in to your Mac.
  2. Navigate to your iPhone XS Max (China) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone11,4,iPhone11,6_12.3.1_16F203_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone XS Max (China) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone XS Max (China) 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 iPhone11,4,iPhone11,6_12.3.1_16F203_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone XS Max (China) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone11,4,iPhone11,6_12.3.1_16F203_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 359a5649644f155e7425039b90ed431732108bac. 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 iPhone11,4,iPhone11,6_12.3.1_16F203_Restore.ipsw
  3. The output of the command should match the following checksum: 359a5649644f155e7425039b90ed431732108bac. 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 iPhone11,4,iPhone11,6_12.3.1_16F203_Restore.ipsw
  3. The output of the command should match the following checksum: 359a5649644f155e7425039b90ed431732108bac. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum75dd4765feba971b50a8f3849293a2c2d9552aba3ac23ec3511cd1ff4bd03873
MD5sum75dd4765feba971b50a8f3849293a2c2d9552aba3ac23ec3511cd1ff4bd03873
SHA1sum359a5649644f155e7425039b90ed431732108bac
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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