Error 20 when updating Sonos

Error 20 occurs when one or more Sonos products loses connection to the update server during a firmware update. The error screen will indicate which of your Sonos products is experiencing the error. Below are some common steps you can take to resolve this error.


Close and reopen the Sonos app

Close and reopen any Sonos apps you're using. To close the Sonos app:

  • On iOS, swipe up from the bottom, hold, then let go. If your iOS device has a home button, double-tap the home button instead. Swipe up on the Sonos app.
  • On Android, swipe up from the bottom, hold, then let go. Swipe up on the Sonos app.


Reboot your Sonos products

Reboot all of your Sonos products. Once you have rebooted all of your Sonos products, make sure they all show up in the Sonos app and try the update again.


Move closer to your WiFi router

If possible, move the Sonos product experiencing the error closer to the router and try the update again.

Still need help?

Our technicians can help over the phone or with a live chat. You can also ask questions and find answers with other Sonos owners in our Sonos Community.