aadil

Hi, I am posting here the problem i m facing, actually i have a panelview plus 600 with no memory card having cat # 2711P-T6C20D, all i want is to upgrade the firmware so first of all how would i can do that secondly someone told me that without memorycard u cant do it so is that so...??? and whenever i powerup the panel the screen stop and shows the (attachment ) screen so kindly help me out., waiting for your quick response. Regards..