Re: Burning the arduino bootloader to atmega 2560 Post by tuckcp » Fri Aug 01, 2014 2:18 pm Hi, I am having a similar problem. Here it goes... I successfully burned the Bootloader and uploaded the Blink program for the following set up: Programmer Mega to Uno I did this by ...
However, there is a problem when I try to upload the Bootloader, it says "ser_open(): can't open device "unknown"", and the uploading fails. How can I fix this? Thank you.Author Yucheng-L commented Jan 2, 2017 Blow is the message I got. I am using Arduino UNO as programmmer....