IPSW Downloads

iOS 17.1.1 - 21B91 for iPhone 11 Pro

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

Release Date08 November 2023
Upload Date03 November 2023
File NameiPhone12,3,iPhone12,5_17.1.1_21B91_Restore.ipsw
File Size6.95 GB
SHA256sumd70c4ff6136c01103cbc307e138cbf272755533a3e894e28dd6b0c05c9fded3c
MD5sum79fcba236e44b4860ea7137593961ffe
SHA1sumabd3484ae6b5af4463cd92c891e9a8f2e7322284
IdentifieriPhone12,3

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 11 Pro to your PC.
  3. Open iTunes and navigate to your iPhone 11 Pro.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone12,3,iPhone12,5_17.1.1_21B91_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 11 Pro to reboot.

macOS

  1. Connect your iPhone 11 Pro to your Mac.
  2. Navigate to your iPhone 11 Pro in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone12,3,iPhone12,5_17.1.1_21B91_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 11 Pro to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 11 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 iPhone12,3,iPhone12,5_17.1.1_21B91_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 11 Pro to reboot.