What do the colors and beeps indicate Please refer to the Color & Beep information in the user guide. Related articles I received a low battery alert. When should I change my batteries? The keypad is not lit up. What do I do? Do I need to install the door sensor? What does it do? The Wi-Fi Bridge light is flashing. What does this mean? How does the Gainsborough Freestyle Smart Wi-Fi Trilock work?