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iPhone 8 Plus (GSM)

iOS 12.1.2 (16C104) for iPhone 8 Plus (GSM)

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

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✗ 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_12.1.2_16C104_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_12.1.2_16C104_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_12.1.2_16C104_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_12.1.2_16C104_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 1fcdba760251187ac5b8b14d38b2bf7fd387ef75. 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_12.1.2_16C104_Restore.ipsw
  3. The output of the command should match the following checksum: 1fcdba760251187ac5b8b14d38b2bf7fd387ef75. 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_12.1.2_16C104_Restore.ipsw
  3. The output of the command should match the following checksum: 1fcdba760251187ac5b8b14d38b2bf7fd387ef75. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum bee9a7c69684257f3f3274cde0ed2e5ace02c149f261043742528b5a94bca886
MD5sum 957d2c932aadf3c1d3e464e5e24bee3b
SHA1sum 1fcdba760251187ac5b8b14d38b2bf7fd387ef75
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 12.1.2 includes bug fixes for your iPhone. This update:

  • Fixes bugs with eSIM activation for iPhone XR, iPhone XS, and iPhone XS Max

  • Addresses an issue that could affect cellular connectivity in Turkey for iPhone XR, iPhone XS, and iPhone XS Max

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

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