Hey everyone. I have a jailbroken 3g running on 3.1.3, bb 05.15.04, that im trying to unlock. With the new release of redsn0w, im assuming the best way to go about unlocking (since ultrasn0w wont work with my bb) would be "update your 3G or 3GS to 06.15 solely for the purposes of downgrading to 05.13.04". Is this correct? If so, how do I upgrade the baseband to 06.15 while staying on ios 3.1.3? Any help appreciated!!