I recently moved and it took me about an hour and a half to figure out how to move my two nest cameras (with battery) to my new apartment.
Here were the steps I took, and I'm not sure which one solved the issue but here it goes:
I took the cameras off of the magnetic wall hangers (probably doesn't matter)
I reset my phone and reset the google home app and cleared all the data I could from the app, including removing the devices from the previous location.
I set up a new location but did not connect it to the wifi, I have cleared the memory of the wifi networks.
I did a hard reset on both devices: I pressed the reset button until I heard a chime. This takes many, many seconds.
The light turns BLUE on the cameras when they are ready to pair.
I tried turning wifi, my bluetooth and airplane mode on and off.
Finally, I paired the devices, keeping my phone and the cameras plugged in and close together.
Something about all these things finally made it work. I think it was the hard reset, with the chime.
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