Sonos has a recycle mode where it becomes permanently bricked after 21 days by user/Sonos.
So much for trying before you buy. Beware buying second hand Sonos or any internet activated/call home devices. More detail here: https://mobile.twitter.com/atomicthumbs/status/1210662988828…
1) Puts device in Recycle mode on their app and gets 30% discount on new SONOS speaker
2) Buys new Devices with 30% off
3) Sells old devices within the 21 day period and collects the cash
4) New Owner gets screwed as speakers are bricked (and apparently according to SONOS this cant be reversed)
Its Apple Activation lock all over again
people buying second hand and getting screwed all in the name of SONOS selling more speakers