After receiving the product, please open the back cover of each emulator and install battery (Battery standard: CR2032) first before using it.
Steps to install battery:
Note: All four emulator keys need to be bound, Do not need to bind again after binding.
Select Immobilization -> Toyota -> All smart keys lost -> Bind emulator key
Press the button on the emulator key, green indicator lights on, then put the emulator key into K518 key slot.
Tips: If one of the emulator key fails to bind, you can turn on/off for 3 times, then the key will be initialized, and can be recycled again.
Hope it helps!