IPSW Downloads

iOS 26.3.1 - 23D8133 for iPhone 13 Pro Max

This firmware is signed. This means that you can restore to it in iTunes.

Release Date04 March 2026
Upload Date01 March 2026
File NameiPhone14,3_26.3.1_23D8133_Restore.ipsw
File Size9.42 GB
SHA256sum4b2bddae14bb7a5588e7d9b124bf3ed95b8e25ffd3b6084900925288e840d151
MD5sum152f80b842bfcb7469a5ca2276b73c6e
SHA1sum8f8a69c3be5ba9bbfbdaa09548c52d5f7db72206
IdentifieriPhone14,3

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 13 Pro Max to your PC.
  3. Open iTunes and navigate to your iPhone 13 Pro Max.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone14,3_26.3.1_23D8133_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 13 Pro Max to reboot.

macOS

  1. Connect your iPhone 13 Pro Max to your Mac.
  2. Navigate to your iPhone 13 Pro Max in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone14,3_26.3.1_23D8133_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 13 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 13 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 iPhone14,3_26.3.1_23D8133_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 13 Pro Max to reboot.