First of all, the instructions aren't precise. Does it matter whether the microphone button has been set or not? Or just hold the microphone button and the down volume button regardless of the state the microphone is in?
Second, the instructions fail to mention that when you hold the volume down button down that the volume is being decreased until there is none.
Third, my light ring slowly became reddish orange except right where the volume down button is, which remained a kind of blue white.
It took what seemed like more than 20 seconds, closer to a minute, and then the unit seemed to shut off. Then it started up again, but did NOT go orange.
I tried this several times, unplugged/replugged the unit, and it is NOT resetting.
The reason I needed to reset in the first place is that the Echo Dot stopped responding to 'alexa' (wake word). We could still hit the command button and it worked fine, just couldn't talk to it.