solve:

One The vibrating disk is walking and not moving anymore. If it can work normally, connect a wire from the GND port of the controller to the vibrating disk,

It is recommended to first check whether the yellow and green ground wires between the vibration plate and the controller are reliably connected, and then check whether the base is reliably grounded

If the vibrating disc is not made of metal spring, a wire can be connected to the bottom of the vibrating disc body to solve the problem.

II Press the start/sleep button to stop the vibrating disc, hold the vibrating disc with one hand, and start the controller with the other hand. Check if the voltage rise rate is normal for payment. If it is normal, follow the same steps.