IPSW Downloads

iOS 26.5.1 - 23F81 for iPhone18,1

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

Release Date01 June 2026
Upload Date28 May 2026
File NameiPhone18,1_26.5.1_23F81_Restore.ipsw
File Size10.54 GB
SHA256sum33d26ed385ca2a0d7da18f9e62fa7709a6c341b06e13916e25f167b889ce3c1c
MD5sum41c333f20929fc03bd6de968a03a6d03
SHA1sumae3500d9b177a3712328c29b9b070ba4421a9f1c
IdentifieriPhone18,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone18,1 to your PC.
  3. Open iTunes and navigate to your iPhone18,1.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone18,1_26.5.1_23F81_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone18,1 to reboot.

macOS

  1. Connect your iPhone18,1 to your Mac.
  2. Navigate to your iPhone18,1 in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone18,1_26.5.1_23F81_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone18,1 to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone18,1 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 iPhone18,1_26.5.1_23F81_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone18,1 to reboot.