I have just received my Bangle js and cannot connect (on https://banglejs.com/apps/) using instructions provided here: https://banglejs.com/start. So, I went through the troubleshooting and still could not connect. Each time I get a 'device connection failed. Undefined' error being returned on the apps page.
So I then tried to upload a new firmware from here: https://www.espruino.com/Bangle.js#firmware-updates. I chose the stable 2v08 zip release and it still does not work.
I am unclear whether I first have to connect to the Bangle device within Bluetooth settings on my Macbook Pro or not. I confirm that my Macbook Pro does support BLE 4.
Please can someone help me to troubleshoot this further.