Cannot upload code to mega 2560

Development Tools IDE 1.x
1

I'm no programming expert.. Thus need some help on this.

Whenever I tried to upload my code to my Mega 2560, it'll have an error saying:

avrdude: ser_open(): can't open device "\.\COM4": The system cannot find the file specified.

avrdude: ser_drain(): read error: The handle is invalid.

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

Any help will be appreciated.. :slight_smile:

2

What version is your OS (Win7, 8, 10 or ....)? Which version of IDE?

Which com port in Windows device manager? Are there multiple ports in the IDE's port menu?

3

Win 7 home premium 64bit, only 1 port (COM4)

4

There were 4 questions; only two answers :wink: And did you follow the link that the error message provided?

I will not be able to help due to insufficient knowledge in this area but the above are general questions.