IPSW Downloads

iOS 17.2.1 - 21C66 for iPhone 12 Pro

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

Release Date19 December 2023
Upload Date16 December 2023
File NameiPhone13,2,iPhone13,3_17.2.1_21C66_Restore.ipsw
File Size7.29 GB
SHA256sumb3ddf66aa83335df5aa5b1ef5d9a209fa50812c65ae173adc6e1630c8a0dc48d
MD5sum7d14cc55d3d9248d115d826392ebe76e
SHA1sumea4463525e056c1c4d5ddd92f4fd2d1a71f96d2d
IdentifieriPhone13,3

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 12 Pro to your PC.
  3. Open iTunes and navigate to your iPhone 12 Pro.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone13,2,iPhone13,3_17.2.1_21C66_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 12 Pro to reboot.

macOS

  1. Connect your iPhone 12 Pro to your Mac.
  2. Navigate to your iPhone 12 Pro in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone13,2,iPhone13,3_17.2.1_21C66_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 12 Pro to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 12 Pro to your PC.
  3. Open a terminal and navigate to the IPSW file you downloaded, e.g., cd ~/Downloads.
  4. To perform a full erase restore, type idevicerestore -e iPhone13,2,iPhone13,3_17.2.1_21C66_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 12 Pro to reboot.