Why doesn't my Sony Ericsson T650i get any service?

Question

I recentley bought a sony t650i via ebay. I recieved the phone and switched my SIM card from my old cingular phone to this new sony and everything on the phone works great except it doesn't get service no matter where i go, does anyone have a solution? PS the phone is already unlocked

Answer 1

Service should be good on it since you before had another Cingular phone that had good service on it.  You can try a new sim card in your phone. That might solve your problem.