I searched, and saw only a bunch of unanswered threads about this. I'm hoping for better luck. I got a buyer for my 3GS which i advertised as jailbroken and unlocked. Didn't bother to actually do it until tonight, the night before I meet this potential buyer. So, I basically installed the apple version of 4.0.1, then went to jailbreakme.com to jailbreak, and install cydia, pdf patch, and ultrasn0w. All is fine except that everytime I reboot I get a "waiting for activation" message. I can't test, but I assume a tmobile sim would work. I'm guessing I should have used pwnagetool to upgrade to 4.0.1, but now I think it's too late. Any help, please? I've got 12 hours before I see this guy.