IPSW Downloads

iOS 17.5.1 - 21F90 for iPhone 15 Plus

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

Release Date20 May 2024
Upload Date17 May 2024
File NameiPhone15,5_17.5.1_21F90_Restore.ipsw
File Size7.54 GB
SHA256sum7ae65fa01f0e5c8b9681d50a78f6859300299714664cd8037c1293cd4441e408
MD5sum30059db904c252373355e9ee6ea0a0d4
SHA1sum755ca7e6a7571460365fe4740e518288f27fab16
IdentifieriPhone15,5

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 15 Plus to your PC.
  3. Open iTunes and navigate to your iPhone 15 Plus.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone15,5_17.5.1_21F90_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 15 Plus to reboot.

macOS

  1. Connect your iPhone 15 Plus to your Mac.
  2. Navigate to your iPhone 15 Plus in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone15,5_17.5.1_21F90_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 15 Plus to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 15 Plus 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 iPhone15,5_17.5.1_21F90_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 15 Plus to reboot.