Since @BobFrankston did the 3-second press already - @Robin, your posts obviously crossed on the network - it could be that the switch is not working for what ever reason. It is very rare that hardware - and software - from @Gordon has a break down, but it is possible.
I do not know what the green led continuously on means.
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.
Since @BobFrankston did the 3-second press already - @Robin, your posts obviously crossed on the network - it could be that the switch is not working for what ever reason. It is very rare that hardware - and software - from @Gordon has a break down, but it is possible.
I do not know what the green led continuously on means.