I'm not sure I understand... Is it that you updated the firmware but your old software was left in flash memory, so didn't work?
@Gordon 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.
I'm not sure I understand... Is it that you updated the firmware but your old software was left in flash memory, so didn't work?