Samsung F490- can receive a call but can't make a call:"Service not allowed"

[vutuantu1990]

My Samsung SGH-F490 can receive a call , but i can't make any calls, it notices :"Service not allowed"

I hope to receive some helps from you

Thanks !

 

[vutuantu1990]

Is there anyone help me (

 

[blaiseid]

Is it on Vodafone ?

If no, then check your internat antenna connections.