IPSW Downloads

iOS 15.8.4 - 19H390 for iPhone 6s Plus

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

Release Date31 March 2025
Upload Date21 March 2025
File NameiPhone_5.5_15.8.4_19H390_Restore.ipsw
File Size5.06 GB
SHA256sum0791a1d2a91f78047c9128845337ef8b18175bbf61097573621153ef1f1cb77c
MD5sum480f4eb5ed38a0f2c9e6e0ac6d26fdde
SHA1sum100813ebcbab2bd765135af8ce1dacb9c59438dc
IdentifieriPhone8,2

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 6s Plus to your PC.
  3. Open iTunes and navigate to your iPhone 6s Plus.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone_5.5_15.8.4_19H390_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 6s Plus to reboot.

macOS

  1. Connect your iPhone 6s Plus to your Mac.
  2. Navigate to your iPhone 6s Plus in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone_5.5_15.8.4_19H390_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 6s Plus to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 6s 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 iPhone_5.5_15.8.4_19H390_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 6s Plus to reboot.