i wanna txt to my sorea korea friend  she never received,but she can txt to me(must add 2 between 00 n 64 e.g.0026421*****) n that number is +8210...if i reply . she cant received....i try more different combination about Idd codes but its cant...(eg:+82...008210\0082010\0030082\007008210....)who can help me~~~???