Try this.. from your cell phone app remove the nest then remove the
Google app from your phone. Then reinstall the Google nest app. Next
you’ll need to remove nest from your thermostat by going to settings and
clicking on reset or reinstall. Then you...
Is there any easy way to get the code needed to reinstall nest learning
thermostat? When I try to reinstall the message is it already is
installed. It only works manually now…lost ability to use with cellphone
after nest software update
I have same problem….you need to delete thermostat from google nest
account then go through process to reinstall as new product…, Or hire
hvac professional to do it right. $100 usual fee. Good luck