The problems and solutions of the car kit (1)

We will conduct a comprehensive test for the  Car Kit before shipment:
Please make sure to connect the circuit in the right way. Debugging the car if the process encountered the following problems:
1: one wheel or two wheels do not work.
2: buzzer does not ring;
3: RGB light does not light or display the wrong color;
4: remote control can not control the car movement;
5: the steering gear can not work;
6: Ultrasonic detection data is incorrect;
These problems are mainly due to poor contact between the Adeept UNO R3 board and the Adeept Motor Shield board.
Solution:
Place the long pins of Adeept Motor Shield upright. Re-insert the Adeept UNO R3 board