Arduino port grayed out for Fake Board with CH340

Question

I have downloaded and used Arduino IDE v1.8.4 from official site (needs no install) for windows10, and connected my random board with a ch340, but it's LED is only blinking and I can't select the port (ie. it's grayed).

I did test all USB ports and restarted my laptop but that didn't work!

I tried to install 1.6.9 IDE that I had before, but again the port option is unselectable!

This is my board: http://uupload.ir/files/xgv_uno.jpg

Have you tried a new cable? or a different laptop? If you have is its possible you have the wrong board selected? — Code Gorilla, Sep 21 '17 at 15:59
@Majenko: windows10, I don't know is this genuine or not? how can I find this? (I only see the microcontroller is SMD) — WDR, Sep 21 '17 at 18:13
@CodeGorilla: Cable is OK, and I have no computer at know to test it — WDR, Sep 21 '17 at 18:32

score 2 · Accepted Answer · answered Sep 21 '17 at 18:52

Simplest possible thing would be that you do not have CH340g driver installed and you should try installing it first; These boards use CH340 for usb to serial and they need the driver to be installed; Please give it a try by getting the driver from the following link http://www.wch.cn/download/CH341SER_EXE.html or any other reliable source if there is any problem with the link;

If the board is not recognized even after that, it could be a bad USB port or a bad USB cable or even a board with the CH340 chip dead;

Arduino port grayed out for Fake Board with CH340

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