To properly install your new Smart Thermostat, you will want to first turn off your circuit breaker and then remove the cover of your existing thermostat. Don’t just take a good look, take a pic. Make sure it’s clear and mark the wires. Only after your sure you know what it should look like, disconnect the wires and the back plate. Patch and paint the wall as needed. Thread the wires through the new Smart Thermostat back plate and attach it to the wall. You will need a screw and screw driver. Insert the wires into the new thermostat and put the display front on. Turn on the circuit breaker and enjoy your new Smart Thermostat.