IPSW Downloads

iOS 17.5 - 21F79 for iPhone 15

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

Release Date13 May 2024
Upload Date05 May 2024
File NameiPhone15,4_17.5_21F79_Restore.ipsw
File Size7.53 GB
SHA256sum071facee10a2aea6946429ca2b9ff20ea80e3d7d6b39a4af9c94fcc05a58f8bc
MD5sum2130da19a0586eaae7408c39bf4922b9
SHA1sum63991c525267f5adf72e6ebc8be10fe090d856ce
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_17.5_21F79_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_17.5_21F79_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_17.5_21F79_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 15 to reboot.