I have the first Generation i phone running one of the first generation i.o.s for the phone. I have jail broken the iphone so i never updated the ios for fear it would lock and i would not be able to jailbreak it again to unlock it. soooo my question is one can i even update the 1st Generation iphone or the "2G" iphone to ios4 and if not what is the latest ios i can get for it? If i can update the ios 4 to the 2G iphone how should i go abt jail breaking it? I have a Mac book pro and i used ziphone last time...i figured i would use the same again this time but i need a little bit of guidence first. the current o.s on the iphone is 2.2