iOS 26.3.1 (23D8133) for iPhone 16

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iPhone 16

✗ 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 (10 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 16 in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 16.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone17,3_26.3.1_23D8133_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 16 to reboot.

macOS

  1. Plug your iPhone 16 in to your Mac.
  2. Navigate to your iPhone 16 in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone17,3_26.3.1_23D8133_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 16 to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 16 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 iPhone17,3_26.3.1_23D8133_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 16 to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone17,3_26.3.1_23D8133_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 9d90602ea4342ac37730a3db9b96e39add68eca9. 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 iPhone17,3_26.3.1_23D8133_Restore.ipsw
  3. The output of the command should match the following checksum: 9d90602ea4342ac37730a3db9b96e39add68eca9. 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 iPhone17,3_26.3.1_23D8133_Restore.ipsw
  3. The output of the command should match the following checksum: 9d90602ea4342ac37730a3db9b96e39add68eca9. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumd2c68e0f27aae8db2e05353037e73966d2e815c3e3b74bed7152dfe3bbf5e154
MD5sumd2c68e0f27aae8db2e05353037e73966d2e815c3e3b74bed7152dfe3bbf5e154
SHA1sum9d90602ea4342ac37730a3db9b96e39add68eca9
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides bug fixes for your iPhone

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

https://support.apple.com/100100

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