inside the nokia n800 usb connector are little holes, i used a small wire and put it to make contact inside 4th and 5th holes!after that i plugged nokia standard usb cable and at the other end a female to female usb adapter made from 2 front panel pc female connectors!after i put my usb drive in one female usb connector my n800 displayed the usb icon and opened filemanager and showed rhe files from usb stick!