Hi everyone, Sorry for a newbie question here. But googling it returns mostly old articles and I'd like to know if they're still valid. A friend has a iPhone 4 iOS 4.3.5 that she asked me if she could unlock. It seems unlockable (redsn0w?), but I'd like to just clarify something. Do I need to jailbreak it first in order to unlock it? I jailbreaked an iPhone 3 some years ago, and I remember it getting slower after the jailbreak, maybe due to all the Cydia and SSH stuff it installed? Is it possible to unlock an iPhone without the installer installing a bunch of other stuff? Also, I remember updating the iPhone while jailbreaked and it turned into an iBrick. Is that still a concern? Or is unlocking independent on the iOS version? Thanks!!