I HAVE AIRTEL COMPANY USB MODEM WHICH IS MANUFACTURED BY MICROMAX COMPANYAND MODEL NO MMX610U, I LOST THIS MODEM SIMCARD PIN TRAY,I HAVE CONTACTED AIRTEL OFFICES SO MANY TIMES BUT NOT GOOD RESPONCE, IT IS COMPANY RESPONSIBILITY TO PROVIDE PART AFTER SELLING, IT SEEMS THAT AIRTEL SERVICE IS VERY WORSE, I CANT USE THIS MODEM DUE TO LOST OF VERY SMALL PART WHICH CAN BE REPLCE EASILY...