iPhone 4S/4/3GS Jailbreak- Use Blackra1n Untethered Jailbreak Tool

Jailbreak with Blackra1n
Blackra1n suitable for firmware 3.1.2. and over so if your iPhone is included in this firmware, you can use Blackra1n jailbreak tool. This tool is easy and safe. Just follow some simple steps to complete the whole process. When you run the application, walks you through the jailbreak process. Jailbreak tool is compatible with Windows.
Steps to Follow for Blackra1n