If device cannot be detected by softwares. The following massage will display. First make sure you have successfully installed the USB Driver. Which you can download at
Debugging USB Serial Port
If it doesn't work, Maybe the driver is not the correct version for your system. For this situation, please download Arduino IDE which contains a variety of drivers for debugging.
Download Arduino IDE at https://www.arduino.cc/en/Main/Software
Install Arduino first. Plug in XPlotter power, power on and connect USB cable. Then open Arduino and select Tools -> Port. If a port named "/dev/cu.wchusbserial1410" appear. It means your OS already have the correct USB driver and can find the device now. Try the software again. If software still cannot detect the device. Please contact us through E-mail. firstname.lastname@example.org
If cannot find a "/dev/cu.wchusbserial1410" port. It is probably a hardware issue. Please send us an E-mail. email@example.com