IPSW Downloads

iOS 26.3 - 23D127 for iPhone 15

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

Release Date11 February 2026
Upload Date07 February 2026
File NameiPhone15,4_26.3_23D127_Restore.ipsw
File Size9.45 GB
SHA256sumc9681dc915b28a8d7e4c45213b6eeecf91a782434d5ffef11139e777a8e9efcc
MD5sum8b38d694695736256fd128810dd3f75c
SHA1sume39702c4f95728d8c988e478bb18cf2d9b13e7ef
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_26.3_23D127_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_26.3_23D127_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_26.3_23D127_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 15 to reboot.