I am attempting to find a solution to my SD card. I went to buy a larger GB for recording purposes. However, when I installed this new SD card it is saying I need to use Sentinel "Clear User Data." When I plug the scanner into the USB, open the Sentinel and attempt to activate the aforementioned function, it is not showing anything in the Sentinel box. The scanner, however, is is showing USB Mass Storage on the screen. Please, help me!