there is no prompt to put into bootloader mode...nothing else happens.
That's a bit strange... The IDE should work.
However maybe you could try using the Nordic App to do the upload (http://www.espruino.com/MDBT42Q#firmware-updates) that's what we usually suggest
I'm struggling to find the link to the Nordic app to try..Must be missing the obvious
@natman1970 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.
That's a bit strange... The IDE should work.
However maybe you could try using the Nordic App to do the upload (http://www.espruino.com/MDBT42Q#firmware-updates) that's what we usually suggest