I bought bb 9900 recently and i am using a at&t sim card. the problem is : i could use bb's browser and view not matter wat knid of website. but i cant use apps such as facebook twitter bbm and etc. cant log in.
i am using an at&t pre pay card and its with 100mb data each month. but the phone said i dont have blackberry internet service. even though i could use browser to view websits. kind of complicated.
can someone tell me how to solve this ???