Your thermostat is some of the oldest and simplest ... and I’m using all that extra power to run the official 7 inch touchscreen as a display and interface for the HVAC. I’m also using some ...
It's available for both iOS and Android. Verify that the words "Wi-Fi SETUP" are displayed across the thermostat’s screen. If not, you’ll have to manually put the thermostat into Wi-Fi setup mode.