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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.
@fanoush
It happens to me randomly every few days or weeks too. The watchface is frozen with some old time still shown. Button does not work except holding it for the watchdog reboot - that 'fixes' it. I do use gadgetbridge too. Did not think about relation to connection as it happened when the phone was near (over night, both on table next to each other) and it worked fine many times when connection was lost during day but still it can be related.
Was thinking about debugging it over SWD but didn't get to it yet. For that I think I'd need my own firmware build installed with matching debug symbols to see exact source line where it hangs including variable values and call stack so that is what I did not do yet. Will try to make such build, install it and wait.