IPSW Downloads

iOS 5.1.1 - 9B206 for iPhone 4S

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

Release DateInvalid Date
Upload Date27 April 2012
File NameiPhone4,1_5.1.1_9B206_Restore.ipsw
File Size0.78 GB
SHA256sumb6870acf127a58e2775f93b9314cc678ac39caed7f0cbd13699f5f3a09c6f277
MD5sum50d2ef6d24b99525786aea25bb1f69cf
SHA1sumac99928cc52fcb24502959ace3c36a63ba75ab6c
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_5.1.1_9B206_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_5.1.1_9B206_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_5.1.1_9B206_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 4S to reboot.