If you have already connected the interface, please try to reconnect it and restart the application.
The interface should be connected with a car. ”
Go to computer device manager to check USB driver version
Right click on USB Serial Port COM4-Property
Right click COM4 to select Search for the driver software on your computer
Choose driver software destination folder, replace COM4 FTDI driver in C:Users/Desktop/CDM v2.12.28 WHQL Certified_X64/ftdiport
USB Serial Converter A version is too low