iOS 4.2.1 Jailbreak: redsn0w 0.9.6b4 Download and Instructions

By Jamie Pert - Nov 23, 2010

If you have installed iOS 4.2.1 on your Apple device we have some great news for you, the Dev-Team has released redsn0w 0.9.6b4.

You can download the Mac version of this jailbreak here and the Windows version of this jailbreak here, however there are some instructions and warnings that you must read beforehand.

You can see all of the information you need to read through beforehand here, the main thing you must know is that ultrasn0w unlockers should not use this jailbreak as it does not allow you to create custom 4.2.1. IPSWs.

There are already well over 1000 comments (here) where people are asking and answering each-others questions, if you are having trouble using redsn0w 0.9.6b4 it is well worth reading this comments as there are plenty of useful tips and how to guides to look at.

Have you successfully used redsn0w 0.9.6b4 to jailbreak your iPhone/iPod Touch/iPad?

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Also See: Unlock solution for iPhone 3GS BB 5.16.05 (iOS 5.0.1)