Ensure you have installed the correct USB-to-Serial drivers (often CH340 or FTDI drivers) alongside the TR6703 software.
The software package usually serves one of two purposes: tr6703 v3 software download free
Some antivirus engines flag the driver installer ( dpinst.exe ) as a “potentially unwanted application” because it modifies kernel drivers. This is a false positive. Whitelist the TR6703 folder if needed. Ensure you have installed the correct USB-to-Serial drivers