The inner terminals of 4,5,6 and call (green) buttons are the same or common. If this line is cut or open these buttons will not work at all.
- If the call (green) button works but the other three buttons do not work, just connect a thin jumper wire from the inner terminal of the call (green) button to any of the inner terminals of the 4,5, and 6 buttons.
- If the four buttons do not work, make a thin jumper wire from any of their inner terminals to the terminal 4 of the keypad connector as show in the picture below.
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