Arduino Nano - avrdude ser open system can t open device COM1 the system cannot find the file specified

Question

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

User · Answer

First  open Device Manager by searching for it in the Windows search bar   Then  click ports and right click the port the Arduino is connected to  Then  go to Port settings  rarr  Advanced  Next  select any port that is not in use and is not the port the Arduino is currently connected to  Then click OK and unplug   replug your Arduino  This works most of the time with any Arduino board

User · Answer

Changing the port in Device Manager works for me  I was also able to fix it by finding the port that Arduino was using and then select it from the Adruion IDE from tools menu Tools Port Com Port

User · Answer

Instead of changing the COM port in Device manager  if you re using the Arduino software  I had to set the port in Tools   Port menu

User · Answer

My issue was due to what physical USB female port I plugged the Arduino cable into on my D-Link DUB-H7  USB hub  on Windows 10   I had my Arduino plugged into one of the two ports way on the right  in the image below    The USB cable fit  and it powers the Arduino fine  but the Arduino wasn t seeing the port for some reason     Windows does not recognize these two ports   Any of the other ports are fair game   In my case  the Tools   Port menu was grayed out   In this scenario  the  Ports  section in the object explorer was hidden   So to show the hidden devices  I chose View   show hidden   COM1 was what showed up originally   When I changed it to COM3  it didn t work   There are many places where the COM port can be configured     Windows   Control Panel   Device Manager   Ports   right click Arduino   Properties   Port Settings   Advanced   COM Port Number   choose port   Windows   Start Menu   Arduino   Tools   Ports    choose port   Windows   Start Menu   Arduino   File   Preferences     very bottom  there is a label named  More preferences can be edited directly in the file       C  Users user name  AppData Local Arduino15 preferences txt   target package   arduino target platform   avr board   uno software ARDUINO   Warn when data segment uses greater than this percentage build warn data percentage   75  programmer   arduino avrispmkii  upload using   bootloader upload verify   true  serial port COM3 serial databits 8 serial stopbits 1 serial parity N serial debug rate 9600    I18 Preferences    default chosen language  none for none  editor languages current      The user preferences txt overrides this one      C  Users user name  Desktop avrdude conf       search for  com       com1  is the default

User · Answer

I was having this same issue this morning  When I checked my Device Manager  it showed COM4 properly  and when I checked in the Arduino IDE COM4 just wasn t an option  Only COM1 was listed  I tried unplugging and plugging my Arduino in and out a couple more times and eventually COM4 showed up again in the IDE  I didn t have to change any settings  Hopefully that helps somebody

User · Answer

This is how I solved the problem  In Device Manager you will find the Arduino COM port     Go to the Advanced properties of the port    Set the COM port number to COM1     Then replug the USB

User · Answer

My solution  TOOLS  gt  Processor  gt   quot old bootloader quot

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

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