I'm guessing they mean:Finally, got a response from the customer support:
"First unplug the traffic card, use the Bluetooth network into the background, the "Bluetooth settings" of the "Bluetooth network sharing" off, and then restart the device"
Can anyone make sense of the instructions?
1) remove the SIM card
2) connect to the T2C, in a browser, go to the settings page to toggle off bluetooth network sharing
3) restart the device