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http://www.iphoneheat.com/2009/06/how-to-jailbreak-iphone-3g-running-iphone-os-30-with-redsn0w-windows/
http://www.iphoneheat.com/2009/06/how-to-jailbreak-iphone-3g-running-iphone-os-30-with-redsn0w-windows/