IPSW Downloads

iOS 11.0.2 - 15A421 for iPhone 6s Plus

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

Release Date03 October 2017
Upload Date28 September 2017
File NameiPhone_5.5_11.0.2_15A421_Restore.ipsw
File Size2.61 GB
SHA256suma784bf94760dd386ed5a038f485ad9e10eaac4e6d7a8a3d671b7ef93a81a04e7
MD5sumecbb1e8ca7f26ec5f4403cebc16d40f9
SHA1sumce41820023e87221097bfb439215d625f9f49442
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_11.0.2_15A421_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_11.0.2_15A421_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_11.0.2_15A421_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 6s Plus to reboot.