Nick Lockwood on Twitter: "This is almost unbelievable: Sonos speaker come with an irreversible auto destruct mode to prevent people re-using them after they've been designated for recycling. It's apparently even possible
How to check if a device is Recycle Mode'd? : r/sonos
Sonos gives a lame reason for bricking older devices in 'Recycle Mode' | Engadget
Sonos 'recycle mode' is slammed by e-waste disposal expert who claims 'reuse is always better' | Daily Mail Online
Sonos kills its device-bricking 'recycle mode' | Engadget