1、Q9:If you use Samsung phone, didn't connect Bluetooth.

2、 Q1: "Oops - unable to determine board type... model:13."

3、Q2: If you Bluetooth APK is not connect properly

4、Q3: Cannot see the video screen on the PC side

5、Q4: Battery wiring touch the left front wheel

6、Q5: How to kill bluetooth process

7、Q6: How to modify IP address of the WiFi hotspot that comes with our car

8、Q7: Oops - unable to determine board type... model: 17

9、Q8: How to modify Yahboom_Car password.

10、Q8:USB camera can video on computer. But can't see video on APP

Welcome to Raspberry pi 4WD repository