My phone was working fine with 3.1.2 its 32 GB 3gs.
Y'day I tried to jailbreak it with pwnage tool in mac, and after that my phone was dead.
It wasn't turn on but when i connected it to pc (using windows xp, service pack 3) it shows the phone in itune but didnt recognize the phone. So i did restore the phone with itune with latest 3.1.3 yesterday (16th Feb 2010).
My phone turn on again, but with emergency call only. and sim card doesn't work.
So guys please do help me with this. I just bought it few days back.