I made a search on google before this threads, as my problem is not solved yet. this is not my first arduino project but it is my first time to use ARDUINO MEGA R3 Atmega2560-16AU CH340G Board. the problem is: my computer(Windows 10) can't read the board (Arduino mega R3 Atmega2560-16AU CH340G) thats why Arduino IDE can't detect the port of the board and i can't upload a code to my board because of that.
i open the device manager of my laptop but still it is not on the port and in the other devices when i connect my board. also it has no sound when i connect the board in to my laptop. i also try to replace the USB cable and insert to another port of my laptop but still it didn't read the board. i also try to install the driver of ch340. http://www.wch.cn/download/ch341ser_zip.html (this is the link where i download the driver of ch340) still didnt read the board i try to test my Arduino UNO and it is working on the USB cable and port of my laptop that's why i conclude that the problem is not in my usb cable and port of my laptop.
the R18 LED is ON or HIGH (RED) and the R17 LED is blinking (RED) in my board when i powering it up or connecting to my laptop.
please help/any suggestion to fix this. thank you.