IPSW Downloads

iOS 17.1 - 21B74 for iPhone 14 Pro Max

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

Release Date25 October 2023
Upload Date15 October 2023
File NameiPhone15,3_17.1_21B74_Restore.ipsw
File Size7.43 GB
SHA256sum303596d47a428ef079d628a76bd267e861dade1103f0855b0a4f251455a4d6ee
MD5sumaa6c5d91f33480e9271b1dcde8e9da38
SHA1sumce753e8506051a76bf7984eb059e1d9b2572ff58
IdentifieriPhone15,3

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 14 Pro Max to your PC.
  3. Open iTunes and navigate to your iPhone 14 Pro Max.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone15,3_17.1_21B74_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 14 Pro Max to reboot.

macOS

  1. Connect your iPhone 14 Pro Max to your Mac.
  2. Navigate to your iPhone 14 Pro Max in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone15,3_17.1_21B74_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 14 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 14 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 iPhone15,3_17.1_21B74_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 14 Pro Max to reboot.