iOS 26.3 (23D127) for iPhone 15

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iPhone 15

✗ 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 (9.4 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 15 in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 15.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone15,4_26.3_23D127_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 15 to reboot.

macOS

  1. Plug your iPhone 15 in to your Mac.
  2. Navigate to your iPhone 15 in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone15,4_26.3_23D127_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 15 to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 15 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 iPhone15,4_26.3_23D127_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 15 to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone15,4_26.3_23D127_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: e39702c4f95728d8c988e478bb18cf2d9b13e7ef. 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 iPhone15,4_26.3_23D127_Restore.ipsw
  3. The output of the command should match the following checksum: e39702c4f95728d8c988e478bb18cf2d9b13e7ef. 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 iPhone15,4_26.3_23D127_Restore.ipsw
  3. The output of the command should match the following checksum: e39702c4f95728d8c988e478bb18cf2d9b13e7ef. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumc9681dc915b28a8d7e4c45213b6eeecf91a782434d5ffef11139e777a8e9efcc
MD5sumc9681dc915b28a8d7e4c45213b6eeecf91a782434d5ffef11139e777a8e9efcc
SHA1sume39702c4f95728d8c988e478bb18cf2d9b13e7ef
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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