You thought that it was enough to say “Ok Google factory reset” ? The reality is quite different, since the process to return your speaker is connected to zero is even easier.
For this, you need to press and hold the microphone button that is located to the rear of the unit for 15 seconds.
Be aware that it is impossible to reset accidentally Google Home using this method, given that you have to hold the button down for a long period of time.
Google Home also warns you by a sound signal that you are about to reset the device and you will see a countdown appear on the surface of Google Home when each LED turns on one by one to form a complete circle.
Once the whole circle lit, Google Home resets and restarts.
To reconnect to Google Home, repeat the same process as when you had it turned on for the 1st time.