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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.
user157250
@fanoush
This is SMA Q3 firmware, not Bangle.js 2. (Maybe) same hardware, different software.
Either return it or you need SWD debugger dongle to reflash the firmware via 4 pins on the back.
Not hard but you need to mess with wires and get some SWD dongle or use Raspberry Pi or Pico for that.