IPSW Downloads

iOS 17.5.1 - 21F90 for iPhone XS Max

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

Release Date20 May 2024
Upload Date17 May 2024
File NameiPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw
File Size7.27 GB
SHA256sum7d7b7b30551530e4b95d3bdba9ac28e8a39ec1500bfe0674422cbfaabf68eb9e
MD5sum9a099d38f67e68f04a7ae1dd9ab6ce55
SHA1sum81b4899c48b079b5112f4958ccb8a61f24c789b1
IdentifieriPhone11,4

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone XS Max to your PC.
  3. Open iTunes and navigate to your iPhone XS Max.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone XS Max to reboot.

macOS

  1. Connect your iPhone XS Max to your Mac.
  2. Navigate to your iPhone XS Max in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone XS Max to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone XS 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 iPhone11,2,iPhone11,4,iPhone11,6_17.5.1_21F90_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone XS Max to reboot.