IPSW Downloads

iOS 17.3 - 21D50 for iPhone 11 Pro Max

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

Release Date22 January 2024
Upload Date13 January 2024
File NameiPhone12,3,iPhone12,5_17.3_21D50_Restore.ipsw
File Size6.95 GB
SHA256sumbbf25ffa7cc68ca252ab60e7eafc5f3d4bee936e33184689097602a5a65bb203
MD5sumd1408ded2d3ee6b2afff43c653c1c828
SHA1sumac4ec80ddd16f6a6c0b53a6547ba210ba7c38c37
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_21D50_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_21D50_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_21D50_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 11 Pro Max to reboot.