iOS 17.2.1 (21C66) for iPhone 15 Plus

1 Choose a product
2 Choose a device
3 Choose a version
4 Download
iPhone 15 Plus

✗ 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 (7.4 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 Plus in to your PC.
  3. Open Apple Devices, and navigate to your iPhone 15 Plus.
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone15,5_17.2.1_21C66_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 15 Plus to reboot.

macOS

  1. Plug your iPhone 15 Plus in to your Mac.
  2. Navigate to your iPhone 15 Plus in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone15,5_17.2.1_21C66_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 15 Plus to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 15 Plus 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 iPhone15,5_17.2.1_21C66_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 15 Plus to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone15,5_17.2.1_21C66_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 32db72eeedcb7dad61d942a8bd64afbd27bc078c. 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 iPhone15,5_17.2.1_21C66_Restore.ipsw
  3. The output of the command should match the following checksum: 32db72eeedcb7dad61d942a8bd64afbd27bc078c. 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 iPhone15,5_17.2.1_21C66_Restore.ipsw
  3. The output of the command should match the following checksum: 32db72eeedcb7dad61d942a8bd64afbd27bc078c. If it doesn't, you may need to redownload the file.

Checksums

SHA256sumd6a4d73b7cc090841c60782fe892041fc26b62294f6b3de6a3af322c5d0085a8
MD5sumd6a4d73b7cc090841c60782fe892041fc26b62294f6b3de6a3af322c5d0085a8
SHA1sum32db72eeedcb7dad61d942a8bd64afbd27bc078c
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

Bluesky Mastodon r/jailbreak Twitter