iOS 26.3 (23D127) for iPhone 17 Pro

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iPhone 17 Pro

✗ 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 (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 17 Pro in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 17 Pro.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone18,1_26.3_23D127_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 17 Pro to reboot.

macOS

  1. Plug your iPhone 17 Pro in to your Mac.
  2. Navigate to your iPhone 17 Pro in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone18,1_26.3_23D127_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 17 Pro to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 17 Pro 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 iPhone18,1_26.3_23D127_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 17 Pro to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone18,1_26.3_23D127_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 2c035ef7ca9e219e9b36cc1879a93470ee2a10e9. 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 iPhone18,1_26.3_23D127_Restore.ipsw
  3. The output of the command should match the following checksum: 2c035ef7ca9e219e9b36cc1879a93470ee2a10e9. 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 iPhone18,1_26.3_23D127_Restore.ipsw
  3. The output of the command should match the following checksum: 2c035ef7ca9e219e9b36cc1879a93470ee2a10e9. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumb9508f415e68fb88be7665b87c865364bf717a6ba897d5e6e3d3ffa0570f04eb
MD5sumb9508f415e68fb88be7665b87c865364bf717a6ba897d5e6e3d3ffa0570f04eb
SHA1sum2c035ef7ca9e219e9b36cc1879a93470ee2a10e9
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update provides important bug fixes and security updates.

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

https://support.apple.com/100100

Some features may not be available for all regions. For more information, please visit:

https://www.apple.com/os/ios

Software updates, like this one, add new features and improvements that may affect performance and/or battery life. To learn more, please visit:

https://support.apple.com/125039

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