Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified"

arduino
user4018137 picture user4018137 · Sep 8, 2014 · Viewed 145.2k times · Source

I am working with an Arduino Nano.

avrdude: ser_open(): system can't open device "\.\COM1": the system cannot find the file specified

This error appears just after uploading the program on the Arduino board. I have checked my port in my device manager. It says COM11 and in the Arduino software as well COM11 is selected.

I have the Arduino Nano board selected in my Arduino software. Also, there mustn't be any specification error while downloading the software file. Is there anything that I am missing?

Answer

Andre Lombaard picture Andre Lombaard · Nov 13, 2014

This is how I solved the problem. In Device Manager you will find the Arduino COM port.

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Go to the Advanced properties of the port

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Set the COM port number to COM1.

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Then replug the USB.

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