SO MY PHONE WAS WORKING FINE BUT THEN OUT OF NO WHERE MY PHONE STARTED FROZING AND TURNING OFF EVERY THREE MINUTES AND THE SCREEN GOING BLACK I WAS JUST ABOUT TO GIVE UP BUT I TOOK MY SDCARD OUT AND PUT AN OLD ONE I HAD AND IT WORKED PERFECTLY FINE FOR TWO WEEKS NO MORE FREEZING NO MORE TURNING OFF NO MORE BLACK SCREEN UNTIL TODAY I HAVE MY SDCARD IN MY PHONE AND IT SAYS CHEKING SDCARD FOR ERRORS AND IT WONT READ IT OR NOTHING THATS THE SECOND TIME WHAT IS HApPENING?? Could someone PLEAse TeLl ME WHAT TO DO