I had the same problem. Here are the order of events that seemed to work
for me: 1. unplugged the unit. plugged back in while holding both volume
buttons. (didn't work - still grey screen)2. Did #1 a second time, same
result.3. Kept the unit on and t...
Did you try holding both volume buttons while the unit is still powered
on? It should prompt a voice response from the hub that it will reset.
That worked for me when it booted back up.
Hey All - for me I was able to solve this issue. With the G screen
frozen and the hub ON, I held both volume buttons until the hub voice
assistant prompts that the unit is going into a factory reset. When it
comes back online it goes through the init...