To reset Apple HomeKit on your thermostat, please follow these steps: - Make sure the thermostat is powered on. - Press and hold the button on the bottom right of the product until you hear a beep. - Then release the button and wait for the thermostat to reboot. A 5-second countdown will appear on the screen during this process. To reconfigure the reset Wi-Fi settings, go to the Home + Control app. Go to Settings, select “Manage My Home,” select the room the thermostat is installed in, select the thermostat, and select “Set Up Wi-Fi.” Then follow the step-by-step instructions provided by the app.