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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.
@Gordon
Hi - it's likely you hit an issue with the original firmware:
You could get it into a state where you'd disabled Bluetooth in settings, but then even on the 'fresh' reboot Bluetooth would stay disabled.
So you need to update the firmware - do you think you could try getting to the Bootloader and see if you can flash it then? It's a different screen to the Bangle.js logo one: https://www.espruino.com/Bangle.js#firmware-updates
https://www.youtube.com/watch?v=uHJGsSaU6Zo
Once you've got new firmware on it everything should be much better.
It's possible there is a hardware fault but it's extremely unlikely as we actually write the Bangle.js firmware onto the watch wirelessly in the first place - so at some point Bluetooth has definitely been working absolutely fine.