Hi,
Have you been able to try with a different USB cable? I think the most common cause of this has actually been due to USB cables sold as charger cables, usually from certain well-known, low-cost highstreet shops. These cables sometimes only connect power, and not data, to save on costs.
If you’re using one of our white ‘noodle’ USB cables it will have the data lines connected, however, it might be worth trying another just incase it’s faulty.
Best wishes,
Joseph
