HowTo Jailbreak iOS 4.2.1 & Preserve Baseband [Sn0wbreeze]/use with UltraSn0w Unlock

APRIL 4th UPDATED : iOS 4.3.1 jb now available here www.youtube.com -------------------- Recommended for : Ultrasn0w unlocked users who want to maintain their baseband but want to update to the newest iOS firmware 4.2.1 (if this doesn't sound like you, wh