How To – Jailbreak iOS 4.2.1 on iPhone with Redsn0w

Today I am sharing a complete guide to to Jailbreak iOS 4.2.1 on any iOS device be it iPhone, iPod Touch or iPad. With the launch of latest version of Redsn0w it is now able to jailbreak iOS 4.2.1


This step by step guide will show you how to jailbreak your iPhone iOS 4.2.1 with RedSn0w.

Jailbreak iOS 4.2.1

Step 1: Make sure iTunes is updated to its latest version. Make sure your iPhone is on 4.2.1. If not, update it via iTunes. Use the link below to direct download Apple iOS 4.2

Read complete tutorial here