Can't open launcher with BTN 2

I am able to power it off through the button, and put it in set up mode (Ben1 & btn2) however the blue tooth does not appear

I guess that'd be because Bluetooth got turned off in settings.

Best thing to do is just install the latest firmware from https://www.espruino.com/Bangle.js#firmware-updates - you can then reboot with BTN1+BTN2 and you'll be able to connect via Bluetooth and upload new code