IPSW Downloads

iOS 12.3.1 - 16F203 for iPhone 6s Plus

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

Release Date24 May 2019
Upload Date22 May 2019
File NameiPhone_5.5_12.3.1_16F203_Restore.ipsw
File Size3.11 GB
SHA256sum68ad422f97a94da2fecfe4c0b0773cfeab3c3515375c08f23a3f98bf64104345
MD5sum84a83ab5e05e2560fd6b08d6c014cd82
SHA1suma168b1bc901fb64cf725ab0dcca183dd684770dc
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_12.3.1_16F203_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_12.3.1_16F203_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_12.3.1_16F203_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 6s Plus to reboot.