4.2.1 Jailbreak? =I'm New here=

[RePT]

Hi There,

I've been looking around jailbreaking for quite some while now, and I am interested in jailbreaking my phone(once again).

I previously jailbroke it and then restored it. It is now on 4.2.1 and it is an iPhone 4.

I was wondering what procedures I would have to take to jailbreak my phone now? I have looked around but i cant find the answer i want.

Thank you.

[iYeow]

If you have 4.2b3 shsh blob and you have a Mac, follow this guide :
iClarified - iPhone - How to Untether Your iOS Jailbreak (Mac) [4.2.1]
but use redsn0w 0.9.7b4 instead of b3.