IPSW Downloads

iOS 11.3.1 - 15E302 for iPhone 6s

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

Release Date24 April 2018
Upload Date14 April 2018
File NameiPhone_4.7_11.3.1_15E302_Restore.ipsw
File Size2.58 GB
SHA256sum025955983f7fdbf2cc4f3207c4c2d1e25f872cc085763d47f5f50e3792c5bd34
MD5sum8044953b5614a5c52f8ec80ad5e1676e
SHA1sumdae0911e040a9717233e4c751939985ede6c7bf8
IdentifieriPhone8,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 6s to your PC.
  3. Open iTunes and navigate to your iPhone 6s.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone_4.7_11.3.1_15E302_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 6s to reboot.

macOS

  1. Connect your iPhone 6s to your Mac.
  2. Navigate to your iPhone 6s in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone_4.7_11.3.1_15E302_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 6s to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 6s 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_4.7_11.3.1_15E302_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 6s to reboot.