You can't connect with the cable, no (apart from for low level debug access, which is not what you want).
But it's extremely likely you can get bluetooth to work again. Sometimes it's even just that your PC gets confused and your computer needs a restart before it'll see the Bangle again
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't connect with the cable, no (apart from for low level debug access, which is not what you want).
But it's extremely likely you can get bluetooth to work again. Sometimes it's even just that your PC gets confused and your computer needs a restart before it'll see the Bangle again