I have a Nano that i bought a while ago and never used. I have a simple sketch that compiles without errors. When I try to upload it to the Nano it hangs, although i Get two flashes of the LED.
My programer is AVRISP mkII
I see an error message that says 'not in sync:resp 0x91'
Other Uno boards and Teensy2 program ok.
Can someone please advise me what to do.