IPSW Downloads

iOS 17.3.1 - 21D61 for iPhone 11 Pro Max

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

Release Date08 February 2024
Upload Date05 February 2024
File NameiPhone12,3,iPhone12,5_17.3.1_21D61_Restore.ipsw
File Size6.95 GB
SHA256sum2f6cbf0f58a4f226d396b3779ec4a0c75e679d0f05c693ef90dc6b9b49f0a3d3
MD5sum20b53fe260e73bec98dd21eaa8034923
SHA1sum1f497e5da04e433c9c398ca65db7a1d82743b210
IdentifieriPhone12,5

Installation Instructions

Windows

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

macOS

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

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 11 Pro Max 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 iPhone12,3,iPhone12,5_17.3.1_21D61_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 11 Pro Max to reboot.