Q&A: how to jailbreak iphone 3G on 4.2.1?

Question by : how to jailbreak iphone 3G on 4.2.1?
i have an iphone 3G on 4.2.1, and I cant find a windows application that can jailbreak it. untethered would be best.

also what is the difference between “jailbreaking” and “unlocking”?

Best answer:

Answer by Irfanmpm
Visit http://www.redmondpie.com/jailbreak-ios-4.2.1-iphone-4-3gs-3g-ipod-touch-4g-3g-2g-with-redsn0w-0.9.6b2-how-to-guide/

video on how to jailbreak :- http://www.youtube.com/watch?v=GeYOxHaI-Kg .

Jailbreaking means you can install any 3rd party applications on ipjone , while unlocking the phone allows to use any carrier .But unlocking requires Jailbreaking.
Hope this helped.

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