Hey guys, I've been at this for quite some time (have unlocked previous 3g, 3gs previously) and I cannot solve this for the life of me. I just got a new 3gs (iOS 5.0.1 and 5.16.05 baseband). Trying to upgrade to the 6.15.00 baseband runs into 60000ms error. Downgrading with iTunes to 4.1 runs into 11 or 20 error when rerouting to 220.127.116.11 gs.apple.com Error 28 is also given sometimes when using 18.104.22.168 but that seems improbable since it is a hardware error. If anyone has any idea how to solve this problem I would be eternally grateful and award you 42 internet points.