I'm trying to jailbreak or rather downgrade an Iphone 3gs from 4.0.2 to a lower software version, preferably 4.0.1. Ive tryed everything and Ive failed everytime, I changed the firmware into 4.0.1 I used saurik's server in the host file... this iphone has never been unlocked before. anyone out there that can tell me how to do this? note that im also trying to unlock it, so upgrading to 4.1 jailbreaking and then downgrading is out of the question.