Brian Plancher

Hi not sure what you have changed here beyond the raw image? Is there a bug you are helping patch?

Have you tried forcing boot loader mode before upload? (Double click the reset button). I’ve found the nano to sometimes be a bit temperamental with the Linux USB drivers.

Awesome thanks @KlausPuchner --- @tototek let me know if that solved your problem and I'll close the issue!

Have you tried re-selecting the port again right before upload? I’ve found that the Nano port-hops a lot.

Wow how strange -- my best guess at this point is that there is a weird USB driver issue with the Nano and Arduino and Linux Mint (I can't recreate...

Sorry you’ve been having all these problems and hopefully Arduino resolves it soon!