If it's working with dio for micro python - then that's unlikely.
Do a flash erase first - there might be something in flash left over that is giving you grief.
@Wilberforce started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
If it's working with dio for micro python - then that's unlikely.
Do a flash erase first - there might be something in flash left over that is giving you grief.