iOS 26.5.1 (23F81) for iPhone 17

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iPhone 17

✓ This firmware is signed. This means that you can 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 (11 GiB)

Windows

  1. Install the latest version of Apple Devices from the Microsoft Store.
  2. Plug your iPhone 17 in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 17.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone18,3_26.5.1_23F81_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 17 to reboot.

macOS

  1. Plug your iPhone 17 in to your Mac.
  2. Navigate to your iPhone 17 in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone18,3_26.5.1_23F81_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 17 to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 17 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 iPhone18,3_26.5.1_23F81_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 17 to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone18,3_26.5.1_23F81_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 602258b77dabf46353051ab85edbc2263ca570e5. 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 iPhone18,3_26.5.1_23F81_Restore.ipsw
  3. The output of the command should match the following checksum: 602258b77dabf46353051ab85edbc2263ca570e5. 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 iPhone18,3_26.5.1_23F81_Restore.ipsw
  3. The output of the command should match the following checksum: 602258b77dabf46353051ab85edbc2263ca570e5. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumafaf1012ff57bcee438c98ae49825167bf643921037c1acab10507e588c195f2
MD5sumfcee02dd10a04b054682df645864b3db
SHA1sum602258b77dabf46353051ab85edbc2263ca570e5
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update addresses an issue for a small number of users that may prevent wired charging on iPhone Air and iPhone 17 models when the battery is nearly drained.

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