我认为您应该联系当地的运营商客户支持部门。或者如果你有一张预付费的SIM卡，那么你应该问那些把它卖给你的人。

hello,

in order to subscribe to mobile internet in my country, i need to dial *363#, but unfortunately i cannot do that with my lumia 920.. it says code not supported.. it works on other phones though..

I think you should contact your local carrier customer support for these sort of things. Or if you got a prepaid sim card, then you should ask the guys who sold it to you.