Google announced the end of support for early Nest Thermostats in a support document earlier this year that largely flew under the radar. As of October 25, first and second generation units released in 2011 and 2012, respectively, will be unpaired and removed from the Google Nest or Google Home app.
Users will no longer be able to control their thermostats remotely via their smartphone, receive notifications, or change settings from a mobile device. End-of-support also disables third-party assistants and other cloud-based features including multi-device Eco mode and Nest Protect connectivity.


I replaced mine with a Sensi. 4 months with Nest, and it decided to confuse hot vs cold signals. Middle of August, it tried to “cool” my house at 3am, instead turning on the furnace, and just kept on going due to the temperature rising. For a week straight, I awoke to 90 degree temps in my house at 3:30 to 4am, and a nice heating bill. I had an hvac friend come over ad tell me in fact, yep, it’s sending signal to furnace, not ac. He checked the wiring, all good. He admitted he knew little of Nests, but said only an idiot would design a thermostat that could allow for a hot/cold signal switch without rewiring.
Heat/cool wiring is rarely correct, many thermostats will have a software option to reverse the wiring.
Sucks that yours got reset for no good reason but it’s probably for the best
I have a Sensi and didn’t program it correctly, though my wiring was on point. HVAC guy puzzled over it a few then called me over to show me what the cryptic options meant. Been solid for a few years now.
I’d like to see those options in the app, but if those were included people would fuck them up and blame the company. 🤷🏻