I already replied to your other comment but in the interest of correcting this misinformation, you can neither ship your bricked device to Sonos nor bring it into a Sonos store.
In Belgium, any electronics vendor has 'aanvaardingsplicht', the duty to accept your old device when selling you a new one. So sonos shops here have to accept them. In fact, you can bring in your old 20kg tube radio and claim your new sonos is replacing it.
