I have 3 iPhones to unlock and they are 1.1.2 right out of the box! They havent been moded in any way!
I would like to upgrade them to 1.1.3 and unlock with ziphone! What is the best way to do that! Do i have to jailbreak 1.1.2 with the old downgrading and oktoprep method or i can jailbreak with ZiPhone? Can i upgrade from 1.1.1 to 1.1.3? Can anyone suggest the best solution?