You can never brick a Bangle2. It's an involved process though, you'll need a special USB connector (USB Female on one end, exposed 4 wires on the other) and connect the 4 wires to an SWD-capable dongle or device (like an ST-Link or Raspberry pi).
I would do as fanoush suggests: see if you can use nrfConnect on an android device or from a PC first.
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.
You can never brick a Bangle2. It's an involved process though, you'll need a special USB connector (USB Female on one end, exposed 4 wires on the other) and connect the 4 wires to an SWD-capable dongle or device (like an ST-Link or Raspberry pi).
I would do as fanoush suggests: see if you can use nrfConnect on an android device or from a PC first.