Whenever i try making a call the line suddenly went to no service and i cannot making a call, likewise when people trying to call me my phone doesnt received the call but only received missed call. Same also when i tried to open the data, it went to no service so i only can play or surfing internet using only wifi connection. I tried change the sim card to another phone and the sim card worked finely but sadly not function too well in my sony xz. I tried to ssend to the sony center but they charged me expensive. Is it antena problem or what?
