I'm probably doing something wrong but I am at a loss. Tried updating network sensors using a USB stick and also with a micro SD card. In either case, when I press the "Update Network Sensors" selection in the initial settings menu, nothing happens. The selection "button" just winks and nothing happens. Tried short press, long press, insert files before powering up, insert files after powering up. Files are unzipped and look good. Network sensors, FA-70, SCX-20, and DRS4DNXT all show up on the 13X.