Quark-elec Technical Forum

Received my Brand new QK-A026 and connected via USB (also power input) and wi-fi setup too, no problem.
I received today Digital Yacht USB to NMEA adaptor as per two instructions attached, in order to get USB NMEA data connection to computer and using the USB connection of device for power supply only and connect to computer just in case of any device update.
The device is connected at home with no DC power supply available only via USB.
I use this sketch for connecting the A026 but nothing comes out from my computer.

connections with A026

Sorry for this confusion. Due to different protocol I believe you need swap + and - wires on the connections with A026. Check below image please. I believe it will work.

Have managed to work with your advice.
Also I'm really happy because my tablet surface Pro X with windows 10 ARM64, has recognized the usb connection of device straight away and also running wit it. Because it's a real pain the drivers for such version that must be compiled exclusively for ARM64 (windows).