HI MY BB CURVE 8520 WAS WORKING PERFECTLY UNTIL EARLIER WHEN I WENT TO SEND A TXT AND A CLOCK CAME UP THEN IT WAS MARKED WITH A RED "X" THEN WHEN I TRIED TO CALL OUT IT SAID "CALL FAILED".NO ONE IS BEEN ABLE TO CALL ME AND I HAVENT BEEN ABLE TO RECIEVE ANY TXTS SINCE. I AM STILL ABLE TO USE BBM AND FACEBOOK ECT..
SOME BODY PLEASE HELP !