Nest phone support was no help. My nest would not connect to the network
or my phone hotspot (just to rule out a potential issue with the
router). Battery readings were above the minimum needed to connect and I
ended up buying a new one. The new one ...
I have learned the hard way (from personal experience) that you do want
to attach the dark blue wire (if you have it available) to the "C"
connector on the mounting plate. This will trickle charge the battery
and keep it above the minimum voltage req...