Hi Caesaran:
We have the serial port debug function in the TOOL 2019 software. It will allows you to set the baudrate and all other parameters directly.
And please also confirm if you have installed the USB driver properly:
https://www.stoneitech.com/media/upload/Download/Software%20%26%20Driver/Driver%20for%20USB2.0%20to%20RS232%20converter.rar