Learn how to Factory Reset SONOS One SL . This is the best method to Restore Defaults on SONOS speaker. Your One SL device will be also deleted from Google Home App, and you will need to add it once again.
Start with opening Google Home App on your mobile device.
Then click on the One SL image to open its dedicated menu.
Next, tap on the Gear Icon to open settings.
Afterwards, scroll down to find Remove device sign, and click on it.
Then, confirm whole operation by tapping Remove.
Awesome! Now you could configure the whole SONOS One SL from scratch.