@misterlisty Did you try Ctrl-C?

@hansjorg2 Ampy is a a python program. You'll find it here: https://learn.adafruit.com/micropython-basics-load-files-and-run-code/install-ampy

Thanks anyway but the problem fixed itself after I updated the firmware and made a few other changes to my code but i still don't know what the problem was but am all good now. Kind regards, Chris