Maybe take a look at the diode? That's the 2 legged, black component nearest the USB connector itself. It might look sightly brown or even look cracked.
It's easy enough to replace, but actually if you don't need to run off a battery, you can just short it out - which is even easier!
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.
Do you think you might have shorted it out?
Maybe take a look at the diode? That's the 2 legged, black component nearest the USB connector itself. It might look sightly brown or even look cracked.
It's easy enough to replace, but actually if you don't need to run off a battery, you can just short it out - which is even easier!