IPSW Downloads

iOS 17.4.1 - 21E237 for iPhone 15

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

Release Date27 March 2024
Upload Date24 March 2024
File NameiPhone15,4_17.4.1_21E237_Restore.ipsw
File Size7.48 GB
SHA256suma3ba3126c42427685306e5edcc7621947ca27e6b995f2bda04748efe5d858470
MD5sumd6dccef8a454ac75ea58fa33567ed7d2
SHA1sum294b459fa7008fdd2c49df4b1619419bd53beb3c
IdentifieriPhone15,4

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 15 to your PC.
  3. Open iTunes and navigate to your iPhone 15.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone15,4_17.4.1_21E237_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 15 to reboot.

macOS

  1. Connect your iPhone 15 to your Mac.
  2. Navigate to your iPhone 15 in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone15,4_17.4.1_21E237_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 15 to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 15 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 iPhone15,4_17.4.1_21E237_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 15 to reboot.