IPSW Downloads

iOS 17.2.1 - 21C66 for iPhone SE 2nd Gen

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

Release Date19 December 2023
Upload Date16 December 2023
File NameiPhone12,8_17.2.1_21C66_Restore.ipsw
File Size6.78 GB
SHA256sum1bbafd16778272a6fa66d208e8cc3c88e1e6dbc36d853916655e3f7a42c0d0a9
MD5sumb9aca5aebdb9278aa1454a64c999aeeb
SHA1sum2f56490b772c6ebcf30039cf2ae15e6ea67b742b
IdentifieriPhone12,8

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone SE 2nd Gen to your PC.
  3. Open iTunes and navigate to your iPhone SE 2nd Gen.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone12,8_17.2.1_21C66_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone SE 2nd Gen to reboot.

macOS

  1. Connect your iPhone SE 2nd Gen to your Mac.
  2. Navigate to your iPhone SE 2nd Gen in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone12,8_17.2.1_21C66_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone SE 2nd Gen to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone SE 2nd Gen 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 iPhone12,8_17.2.1_21C66_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone SE 2nd Gen to reboot.