Strange - are you sure you sent the correct binary to it? The one for the Pico 1v3, and not for some other board like the original Espruino?
@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.
Strange - are you sure you sent the correct binary to it? The one for the Pico 1v3, and not for some other board like the original Espruino?