Sonos: Flashing green
The Sonos product is powered on and ready to be set up; it has not been connected to a Sonos system. On a product that is not new, it means it was factory reset and is ready to set up.
Applies to: Sonos speakers and components. What you see: green, flashing or blinking.
What to do
Sonos’s page gives no step for this light; the meaning above is all it says.
Source
Sonos’s own support page, read on the date shown.
- Sonos: Sonos LED lights — Sonos speakers, portable speakers and components (status light section). support.sonos.com Checked 2026-09-29.
The same colour on other speakers
Another maker’s speaker can use this colour for something else entirely.