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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.
@flurl
I managed to get my button working again by cleaning the PCB in an ultrasonic cleaner. Then I bathed it in IPA, then in Contact Cleaner and finally I dried it with a hot-air gun. But I'm not sure how long lasting that will be, so I'm gonna write to support to see, if there's any spare PCB left over.