[NETWORK DATA PROBLEM] I can't use my network data. It seems like nothing happens when I tick the enable in the settings. I tried to surf but no connection. I tried turning off my phone and remove my sim. I was able to use my sim in other phone but I haven't tried to use a different sim in my phone. My data provider told me that my settings are correct. I don't know what to do coz my phone is out of warranty already. Do you think its the hardware that has a problem? Please help...