IPSW Downloads

iOS 17.1.1 - 21B91 for iPhone 15 Pro Max

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

Release Date08 November 2023
Upload Date03 November 2023
File NameiPhone16,2_17.1.1_21B91_Restore.ipsw
File Size7.64 GB
SHA256suma60eca60851878cc13a7f01849ee4a634ed8b06a94a52fdbaccfdd1c7c615ff6
MD5sumfbb458a16a9dff4295fb86419dd534c8
SHA1sum8b7790adc1fc3eb757da247b3cf174fc76bfdd32
IdentifieriPhone16,2

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 15 Pro Max to your PC.
  3. Open iTunes and navigate to your iPhone 15 Pro Max.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone16,2_17.1.1_21B91_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 15 Pro Max to reboot.

macOS

  1. Connect your iPhone 15 Pro Max to your Mac.
  2. Navigate to your iPhone 15 Pro Max in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone16,2_17.1.1_21B91_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 15 Pro Max to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 15 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 iPhone16,2_17.1.1_21B91_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 15 Pro Max to reboot.