Redsn0w 0.9.6rc9 Jailbreaks iOS 4.3.1 Untethered on Windows and Mac [Guide]

The iPhone Dev-Team released a new version of their popular PwnageTool, along with a new Redsn0w. If you jailbroke on 4.3.1 tethered previously, you may want to back-up and then restore your device prior to using Redsn0w.

Here’s a super simple guide to jailbreaking your device using the newest Redsn0w:

*Disclaimer*: iTD is not responsible for any damage caused to your device while following this guide. Those who follow our steps do so at their own risk.

*Note: Be sure to back up your device before you begin via iTunes. Those relying on an Ultrasn0w unlock should not use this jailbreak.

Step 1: Download Redsn0w for Windows here, or for Mac here. If you haven’t already, download and install 4.3.1 via iTunes.

Step 2: Run Redsn0w. Click on Browse and choose your 4.3.1 firmware file that corresponds to your device. Click Next after your IPSW is identified.


Step 3: Make sure that Install Cydia is checked (should be by default) and click Next.


Step 4: Make sure your device is plugged in and powered down. Boot it into DFU mode using the following steps.

  • Hold the Power button for 3 seconds
  • Hold the Power and Home buttons for 10 seconds
  • Release the Power button but keep holding the Home button for 10 seconds
  • Your device will now be in DFU mode


Step 5: Once in DFU mode, let Redsn0w do its thing. When your device reboots it will be jailbroken on 4.3.1. Many Cydia packages are not updated to work on 4.3.1 yet, so use care when installing.

Redsn0w 0.9.6rc9 Jailbreaks iOS 4.3.1 Untethered on Windows and Mac [Guide]

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About the Author

I am a technology enthusiast who's first major computer experience was with hacking the Sony PSP. I am an Apple Dev, and I'm currently studying Computer Programming and 3D Animation.