Encoding the main ID code: 1_ press and hold down the Talk/Listen button 2_ At the same time, press the Self-start button. Hold the buttons down until the Bell button starts to flash. 3_ Release the buttons. 4_ Within 5 seconds from release, press the Lock button and hold down until a warning beep is given from the indoor station, and communication between the indoor station and the external electronic unit has been established. 5_ Release the Lock button. 6_ Press the button or type in the code you wish to assign into the entrance panel. Encoding the secondary ID code: 1_ press and hold down the Talk/Listen button 2_ At the same time, also press the Self-start button. Hold the buttons down until the Bell button starts to flash. 3_ Release the buttons. 4_ Within 5 seconds from release, press the Lock and Self-start buttons and hold down until a warning beep is given from the indoor station, and communication between the indoor station and the external electronic unit has been established. 5_ Release the Lock button. 6_ Press the button or type in the code you wish to assign into the entrance panel.