Just had this resolved over on Facebook. Yes, thank you, it was that the on button. Seems simple but the green button being lit and then the blue light flashing when switched on instinctively made me believe this was a ‘toggle’ on switch, i.e USB/Bluetooth.
Happy to have this resolved. I did take another look at the instructions leaflet and it could possibly be a little more detailed with steps required. Hopefully this post may at least help others thinking the same.
I feel like I’ve been in an epsiode of ‘The IT Crowd’ 🙂