IPSW Downloads

iOS 11.0.2 - 15A421 for iPhone 6s

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

Release Date03 October 2017
Upload Date28 September 2017
File NameiPhone_4.7_11.0.2_15A421_Restore.ipsw
File Size2.47 GB
SHA256sum742451d408c31840206afebd22f83147512f3acc4efdb90e308775cf087d7d0f
MD5sum13e2887a0071ec11d31aad329dc460e2
SHA1sum125322c64004171b2f3aa50b10992787ff7fe28c
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_11.0.2_15A421_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_11.0.2_15A421_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_11.0.2_15A421_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 6s to reboot.