Problem in nano arduino

Projects Interfacing w/ Software on the Computer
1

Hi
i have an nano arduino,it act correctly but recently dont find com port
Why?

2

You need to provide a lot more information.

Have you restarted your PC?

Have you tried to upload the simple Blink example?

Post your program.

Describe what it does and what changes were made that caused the problem.

Is there anything else connected to the Nano?

etc etc etc

...R

3

I can not upload any code ,it has erorr and i cant view port com4 or another for it
I have a uno it work correctly but nano suddently was destroied

4

but nano suddently was destroied

I can assure you that the PC was NOT responsible for what YOU did to the Nano.

5

Noisecontrol:
but nano suddently was destroied

Unless you have specifically abused it, this is probably untrue. Check control panel > system in windows and see which COM port is in use. It is very unlikely to have same COM port as Uno.