GR-Lychee serial port

Question

GR-Lychee drivers are not installing in windows pc. Is any other way to install driver. 
 My com port show in yellow symbol. Also Not able to connect with serial monitor in ide4gr-1.0.3

RiteshGohil · Accepted Answer

Hey, 
 Make sure you have installed latest driver from 
 https://os.mbed.com/media/downloads/drivers/mbedWinSerial_16466.exe 
 (with USB plugged in to GR-Lychee board on the mbed port,near to ESP32 chip in the center) 
 after installing restart your PC 
 after restart check for driver under Device Manger it should looks like this 
 
 Once done, select Board from Tools -> Board -> GR-Lychee then select Serial Port according to number displayed from device manager, in my case is COM19 
 There are two USB ports in board, second will not display into Serial Monitor directly 
 I hope this will work