I have a friend who is pulling his hair out. He was under the impression that he could have an untethered iPhone 4 6.1.3 jailbreak, but I'm having trouble seeing if that's the case or not. It looks like he could do a tethered jailbreak for sure (with redsn0w or sn0wbreeze), but what about untethered? If so, how? Which software? Anything special he needs to know? I'm currently trying to dig up info but if anyone knows and can answer, the quicker the better. It would be much appreciated.