IPSW Downloads

iOS 17.3.1 - 21D61 for iPhone 11

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

Release Date08 February 2024
Upload Date05 February 2024
File NameiPhone12,1_17.3.1_21D61_Restore.ipsw
File Size6.81 GB
SHA256sum17ae5fc4d50912fd10970410819ee535504c7744d29426206c5073c192e47a5b
MD5sumbd49d082fdfb94e20d497f01815fcb85
SHA1sum6bdc13146782ec9c483a12abd1c9230fa658b88b
IdentifieriPhone12,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 11 to your PC.
  3. Open iTunes and navigate to your iPhone 11.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone12,1_17.3.1_21D61_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 11 to reboot.

macOS

  1. Connect your iPhone 11 to your Mac.
  2. Navigate to your iPhone 11 in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone12,1_17.3.1_21D61_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 11 to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 11 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 iPhone12,1_17.3.1_21D61_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 11 to reboot.