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iPhone 15 Pro

iOS 17.2.1 (21C66) for iPhone 15 Pro

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

Your download should begin shortly. If it does not, you can download it directly here:

Download (8.13 GB)

✗ 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 15 Pro in to your PC.
  3. Open iTunes, and navigate to your iPhone 15 Pro.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone16,1_17.2.1_21C66_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 15 Pro to reboot.

macOS

  1. Plug your iPhone 15 Pro in to your Mac.
  2. Navigate to your iPhone 15 Pro in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone16,1_17.2.1_21C66_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 15 Pro to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 15 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 iPhone16,1_17.2.1_21C66_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 15 Pro to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone16,1_17.2.1_21C66_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 1a6c1a2d0e90c3273b8296c7aa702b3b60486989. 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 iPhone16,1_17.2.1_21C66_Restore.ipsw
  3. The output of the command should match the following checksum: 1a6c1a2d0e90c3273b8296c7aa702b3b60486989. 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 iPhone16,1_17.2.1_21C66_Restore.ipsw
  3. The output of the command should match the following checksum: 1a6c1a2d0e90c3273b8296c7aa702b3b60486989. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum c5855b65a804e267925bc569da8fb3477691fcb6f085613653798145453e99d5
MD5sum 16145c5a819cdfaca3458ff5aa3974e1
SHA1sum 1a6c1a2d0e90c3273b8296c7aa702b3b60486989
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 is recommended for all users.

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

https://support.apple.com/kb/HT201222

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