I own an iphone3g 8gig running ios 3.1.3(got it like that), ive never upgraded an iphone before and its unlocked,jailbroken with lots of appsync from cydia apps,how do i upgrade to ios 4.2.1 without losing the apps or crapping up the iphone,... i would love a detailed guide on upgrading this...
so i want to upgrade to an iphone 3g 8gig. but i just renewed my contract a few months ago. so first i was wondering how much will the iphone cost since i don't get then renewal discount and since i would have to switch to the iphone data plan would that in anyway cause a problem with my...