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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.
reynish
@Gordon
Have you tried a fresh battery? The DFU update uses quite a lot of power, so if your battery is on the way out then the DFU process can cause the battery voltage to drop too low, which will make Puck.js reboot