iPad 4.2.1 Jailbreak with Greenpois0n RC5-2 Untethered (Mac Guide)

iPad 4.2.1 Jailbreak Untethered is now possible thanks to Greenpois0n RC5-2. The trouble is that for now the tool is only available for Mac. Finally!
As we told you the other day, GreenPois0n, the tool that allows you to Jailbreak Untethered to devices iOS 4.2.1 directly, has finally seen the light. In this article we offer a complete guide on how to use it.
Warnings:This guide to Jailbreak iPad