IPSW Downloads

iOS 26.3.1 - 23D8133 for iPhone17,4

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

Release Date04 March 2026
Upload Date01 March 2026
File NameiPhone17,4_26.3.1_23D8133_Restore.ipsw
File Size10.06 GB
SHA256sum537210781068cb9386eb7925f675cec7dacc2857963a7b3117d832e678cadc48
MD5sum8aba15f538402bccf3c1da123f85686b
SHA1sum849e378e1daf2993db4b3285ae2cfb04c05a2b26
IdentifieriPhone17,4

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone17,4 to your PC.
  3. Open iTunes and navigate to your iPhone17,4.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone17,4_26.3.1_23D8133_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone17,4 to reboot.

macOS

  1. Connect your iPhone17,4 to your Mac.
  2. Navigate to your iPhone17,4 in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone17,4_26.3.1_23D8133_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone17,4 to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone17,4 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 iPhone17,4_26.3.1_23D8133_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone17,4 to reboot.