Hello @tamijmurray
Thanks for reaching out to our Nest Community, welcome. I'm here to find a answer for this situation with your new phone.
Could you share more details with me about this case? Let me ask you if your thermostat disconnected to the network? Do you need help to set up with your new phone?
What type of thermostat do you have? Do you see a error code?
Feel free to keep us posting with more information and I will find a solution for you.
Best regards,
Douglas.
