How do I reset my play bar to the factory setting ?

Unplug the PLAYBAR from the power and with one hand, hold down the mute button.  With the other hand, plug it back in while keeping your hand on the mute button until you see the light change from flashing white to flashing amber.  Once that happens, you can release the mute button and allow the PLAYBAR to finish resetting.  

You'll know it's finished when you see the green and white lights flashing in unison.  This will remove all existing information from the PLAYBAR (like registration) and return it to factory state.

Unplug the PLAYBAR from the power and with one hand, hold down the mute button.  With the other hand, plug it back in while keeping your hand on the mute button until you see the light change from flashing white to flashing amber.  Once that happens, you can release the mute button and allow the PLAYBAR to finish resetting.  

You'll know it's finished when you see the green and white lights flashing in unison.  This will remove all existing information from the PLAYBAR (like registration) and return it to factory state.

Where is the mute button

Hi Paul, Depending on when you bought your PLAYBAR, you may see a PLAY/PAUSE button instead of a mute button. This will be the button just above the volume + and volume - buttons.

Doesnt work for me. Could it be that the Playbar is damaged?

My playbar stopped working. All other Sonos components (play 5's and sub) work ok. Tried the factory reset procedure, but when I plug in the power whilst holding the mute button nothing happens - light remains steady white. Have sent diagnostics report - any other suggestions?

after factory reset - you did try and add back new sonos component via controller didn't you?

Unable to enter factory reset mode.

Have been advised after diagnostics that this is a software issue and unit needs to be booked in for repair.

 :(

I had this happen today when I updated my software to 5.1.  I cannot get the factory reset to work.  What did Sonos do and did they charge you?  My playbar is 14 months old, so it's out of warranty.

Since I live in Dubai but purchased the unit in New York, Sono's wanted me to ship the Playbar to them to re-install the software (at my own cost).

I was about to go on vacation, so I planned to do it when I returned. I unplugged the unit (removed the plug from the wall).

When I returned from holiday 3 weeks later, I decided to give it 1 more try before shipping to Sonos - amazingly, the Playbar worked again ??

Good luck to you.

Thanks for the post.  That is great news it started working.  I called Sonos and am waiting on next steps, but they seemed like they would help me get the issue resolved quickly.  I'll repost once I have more info.