IPSW Downloads

iOS 9.2.1 - 13D15 for iPhone 4S

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

Release Date19 January 2016
Upload Date12 January 2016
File NameiPhone4,1_9.2.1_13D15_Restore.ipsw
File Size1.48 GB
SHA256sum40a6100b6697dead0d60d2faf2260be304327fd7bcba78abed591aa03b3f469e
MD5sumf43df8b54efb8808e65cedd7239c021d
SHA1sumb6bd61a4ddb78bc65edc7d409de74bd6aa573e0a
IdentifieriPhone4,1

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 4S to your PC.
  3. Open iTunes and navigate to your iPhone 4S.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone4,1_9.2.1_13D15_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 4S to reboot.

macOS

  1. Connect your iPhone 4S to your Mac.
  2. Navigate to your iPhone 4S in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone4,1_9.2.1_13D15_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 4S to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 4S 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 iPhone4,1_9.2.1_13D15_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 4S to reboot.