This App Note describes how to update SeaGauge CAN BUS interface module firmware using Windows OS Utility.
The SeaGauge CAN BUSnterface modules use a separate processor engine then the main SeaGauge unit and require a different update procedure.
This update is done with vDash but with a custom USB cable (BLACK)
Requires SeaSmart Firmware update available on this site under Support/SeaSmart Firmware.
https://digitalmarinegauges.com/support/firmware-updates/seasmart-firmware/