I have a new Nest Wifi thermostat and i need help setting it up

Understood.
Could you tell me please, did add your thermostat to an account to control it from your phone?

Got it, *****.
Did install your thermostat on the wall already?

Great, in this case, let's move to the next steps.
You’ll need to be able to touch your thermostat to add it to your account in the Home app. This means that you won’t be able to add it remotely. After you’ve added your thermostat to the app, you can control it remotely when you’re away from home.
Scan the QR code on the back of the display or manually enter the code.

1. Open the Home app Google Home app.
2. In the upper left corner, tap Add Add and then Set up device plus and then New devices and then Choose a home.
3. The app will search for devices that you can add. If it doesn't find your thermostat, select it from the list.

You don't see the "+" upper left corner?

In the upper left corner, tap Add "+" ------> Set up device + -----> New devices and then Choose a home.
Could you please, send me a screenshot of when you open the Home app?

To create a screenshot on iPhone with Face ID please press the Side button and the Volume up button at the same time.
If you have a model with Touch ID and Side button then press the Side button and the Home button at the same time.
Quickly release both buttons after.
To attach your screenshot to our chat, you need to press the paper clip button in the lower right corner of the chat window. Then you have to choose an image and confirm sending.

Yes, that is correct.

Could you tell me please, what you see now on your screen?

Did the Home app walk you through installation?
Did you see the installation in the photo below?

Understood.
Your Home app will look for Wi-Fi networks for you to choose from. Pick one to connect to and continue customizing your thermostat.

1. Add a home address for the Home app to use to know if you are home or away.
2. Tell the Home app where in the home the thermostat is located. This will be used for device organization and voice commands.
3. You can create some settings to save energy by scheduling temperatures for each part of your day.
   Set your temperature presets that you can use anytime.
   Create a schedule for these presets to activate in your home.
   Home/Away Assist could be turned on to use Eco temperatures when the Away routine starts and return to your scheduled temperatures when the Home routine starts.

Please let me know when you're done with that.

Please now, Turn off power at the circuit breaker.
Remove the cover from your existing thermostat and take a photo of the wiring for later reference.
Please note: If your existing thermostat is labeled 120 V or 240 V, has stranded wires, or has thick wires with wire nuts, your system is high voltage and not compatible.

Got it, *****.
Could you go back to your Hope App and make a screenshot for me, please?

Great work!
What do you see on the Home App screen right now?

Please let me know when Home App will connect to the WiFi.

Awesome!

Now configure your thermostat.

1. Add a home address for the Home app to use to know if you are home or away.
2. Tell the Home app where in the home the thermostat is located. This will be used for device organization and voice commands.
3. You can create some settings to save energy by scheduling temperatures for each part of your day.

Great work, *****!
You're welcome!
Is there anything else I can do for you today?