Go to the [Mi Home/Xiaomi Home] APP >> select [Xiaomi Smart Doorbell 3S] >> tap the three-dot icon at the upper right corner >> [Doorbell settings] >> choose to turn on/off [Doorbell button light].
Additionally, here are some statuses of the indicator for your reference:
1. After the switch is turned on, when someone triggers the doorbell shooting or rings the doorbell, the indicator will continue to be white until the video shooting is finished;
2. When charging, the indicator is white;
3. The indicator is on for a long time after being fully charged;
4. When the charging state is abnormal, the indicator will flash.
Note:
The setup is completed just on the APP, and the doorbell needs to be triggered by pressing the doorbell or by someone moving before the doorbell comes online again to take effect.