You can use an older version of firmware using 'advanced flasher' but I'd advise you just use a more recent firmware that'll have this (and other things!) fixed.
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.
You can use an older version of firmware using 'advanced flasher' but I'd advise you just use a more recent firmware that'll have this (and other things!) fixed.