# Uploading to board problem

**URL:** <https://forum.arduino.cc/t/uploading-to-board-problem/858647>\
**Category:** IDE 1.x\
**Created:** [May 6, 2021, 10:46pm UTC](https://forum.arduino.cc/t/uploading-to-board-problem/858647 "2021-05-06T22:46:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![koukita](https://avatars.discourse-cdn.com/v4/letter/k/b19c9b/32.png) [@koukita](https://forum.arduino.cc/u/koukita)\
**Post date:** [May 6, 2021, 10:46pm UTC](https://forum.arduino.cc/t/uploading-to-board-problem/858647/1 "2021-05-06T22:46:22Z")

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Hi...When i try to upload any code to my arduino board it give me these error messag  
Arduino: 1.8.13 (Windows 10), Board: "Arduino Uno"

Sketch uses 1894 bytes (5%) of program storage space. Maximum is 32256 bytes.  
Global variables use 59 bytes (2%) of dynamic memory, leaving 1989 bytes for local variables. Maximum is 2048 bytes.  
avrdude: ser\_open(): can't open device "\.\COM1": The system cannot find the file specified.

Problem uploading to board. See [http://www.arduino.cc/en/Guide/Troubleshooting#upload](http://www.arduino.cc/en/Guide/Troubleshooting#upload) for suggestions.

This report would have more information with  
"Show verbose output during compilation"  
option enabled in File -\> Preferences.

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**Author:** ![CrossRoads](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/crossroads/32/214033_2.png) [@CrossRoads](https://forum.arduino.cc/u/CrossRoads)\
**Post date:** [May 6, 2021, 11:44pm UTC](https://forum.arduino.cc/t/uploading-to-board-problem/858647/2 "2021-05-06T23:44:25Z")

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Not too many boards will be at COM1. Do you see COM1 listed under Tools:Port with no board connected, and then it changes to something else when you plug in a board/cable? That new one is the one you want to select.

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**Author:** ![rizwan0549](https://avatars.discourse-cdn.com/v4/letter/r/bcef8e/32.png) [@rizwan0549](https://forum.arduino.cc/u/rizwan0549)\
**Post date:** [May 6, 2021, 11:45pm UTC](https://forum.arduino.cc/t/uploading-to-board-problem/858647/3 "2021-05-06T23:45:31Z")

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just reset the board and try with another port. i hope it will work

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [September 3, 2021, 11:45pm UTC](https://forum.arduino.cc/t/uploading-to-board-problem/858647/4 "2021-09-03T23:45:43Z")

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