How to change battery for bydg3 remote key

bydg3 remote key change battery process: force the key from the center to break, and then pop the other half of the key, in the original folding key place, put the key in, and then with the key sled, you can open the remote control, replace the button battery inside can be.

The remote control key is a key that can open and lock the door from a distance without inserting the key key into the lock hole by using the wireless remote control function of the central control lock. The working principle is simple: first from the key to send out a weak electric wave, by the car antenna to receive the electric signal, by the electronic control unit (ECU, Electronic Control Unit) to recognize the signal code, and then by the system's actuator (motor or electromagnetic coil) to perform the action of the open/close locks.

The system is mainly composed of two parts: the transmitter and the receiver. According to its method of use can be divided into three categories: active working mode, passive working mode and coil induction mode.