Serial port option under tools grayed out in Arduino IDE

[shailavmalik]

I have purchased arduino kit from flipkart https://www.flipkart.com/sunrobotics-arduino-uno-based-super-starter-kit-w-t-learning-guide/p/itmf5y2hxjche4gn?pid=ETYF5XV6XQKEGW39&lid=LSTETYF5XV6XQKEGW39UVPAGI

Everything is working fine when I used the Arduino last time (2 weeks ago) but when I tried to use it yesterday I noticed the port option under tools is grayed out even after plugging in the Arduino USB though green light and light on pin 13(not blinking) are turned on.

Note: I am using Arduino Desktop IDE (latest ver 1.8.19)

I searched the web to find out the issue and went through various forums and followed many methods but nothing worked for me.

Things I have tried

• Restarting the PC
• Trying Arduino on another PC
• Re-installing arduino IDE
• plugging & unplugging Arduino USB
• making sure tight connection of Arduino USB cable

when I check for arduino driver in device manager initially it is shown in PC in which I have used arduino previously (two weeks ago) but when I uninstall it and try downloading again from https://sparks.gogo.co.nz/ch340.html
it shows The driver is successfully Pre-installed in advance! and it is nowhere listed in device manager (even after enabling show hidden devices)

Note: Shows same on second PC

[juansoto]

I am interesting in the same kit form flipkart
All is ok?

[shailavmalik]

The problem is with the Arduino board.
When I plug arduino USB to PC its light lit but unable to upload to arduino.

Have to buy new arduino board

[sterretje]

From the image in your link, it does not seem to use the CH340 chip. What is the chip closest to the USB connector. Some options are

1. 16U2 (square chip, legs at all sides)
2. CH 340 (rectangular chip, legs at two sides)
3. FT232xx (rectangular chip, legs at two sides)
4. CPxxxx (not sure)