I plug in lightbox with power 6volts, start application but it will not recognize lightbox being plugged in.
Thus i cannot apply any updates or changes . I purchased this unit 5 yrs ago , this is the first time i have worked with it to install in a plane
Is it possible the usb adapter is out of date , also there is no indicator led that the unit is working. my test led works on the 6 volt battery, but there is no indication the lightbox is working
Is there a requirement for a receiver to be connected? should not be for updates
serial # 195425