1.When your computer can connect to the COM port successfully, you don¡¯t need to install an additional USB Driver. When you can¡¯t connect to the COM port normally, you need to install the USB Driver, which means that not all computers need to install the USB Driver, sometimes extra Installation will cause the connection to fail£»

2. When opening the home page of the LMS software, do not change other parameters except for selecting the correct COM port