After three reboots of my iPhone, my new Nest Connect finally has been
added to the app. I also brought the Nest Protect right next to the Nest
thermostat and made sure the thermostat was turned on and running the
air conditioner while I was trying t...
I’m having the same issue. Tried it on my iPad and iPhone12 Pro Max,
software version 15.0.1. I’ve done a reboot, re-install and it gets to
the same point as Joub. and just closes out the app.