vrumade

Hi Guys Finally i have activated EVDO on my samsung galaxy pop i559, but its not working....infact now i am not able to use neither 1x nor EVDO. i called customer care and they dont have proper solution, even i have visited reliance mobile store and the suggested to launch a compliant and they will give you setting like proxy and user name and all, even launching complaint there is no use. so can any body help me for same, how i used EVDO net on my handset. is there really need any user name, proxy? plz help me