Google Nest Community

The only solution is to talk to google and get it replaced. 

I got mine replaced with a gen 2 also after it did this, stuck on a grey screen with a G (gen 1). No reset would make it go past it.Took approx two weeks. Talked to google via messages through the support link provided above. Seem to be working prope...

Nope, Australia. i used this link here and went though to the chat, no issues.

I got onto the support chat and they are going to replace it. 

Same here, a power outage took it out. Useful!