- Please check no other 3rd parties apps aren't still connected
- Close down any 3rd party apps and in advanced settings choose 'DISCONNECT BLUETOOTH DEVICES'
If Bluetooth is still showing grey
- Activate BLE
- Swipe up from the bottom of the screen
- Click the centre circle to minimize our app
- Click the Settings app icon (within 5 seconds or Hub app will open again)
- Enable Bluetooth from the settings