Check to ensure that the car glass is wiped clean and squeeze out the air between the adhesive
and the glass to press it firmly.
Solution
Check that the bracket is fastened properly to the running gear and that the bracket is parallel
to the front of the car.
Solution
Check the lens surface and windshield to see if they are clean and free of dirt.
Ensure the lens angle is not too high and the bottom edge captures the front of the vehicle.
Solution
Ensure the power cable (B+) is connected to the battery and the ACC line is connected to the
vehicle ACC line.
Solution
Check that the wiring is correct and ensure the fuse on the wire is intact.
Solution
Check whether the SIM card is installed and confirm there is an active data subscription.
Solution
Check if the TF card is plugged in
Check whether the TF card read/write speeds meet or exceed Class 10 / U1 / V10 standards