How to reset the Sonos Era 100
You need to factory reset the Era 100 or the app can't find it during setup.
Most likely causes
usually this
You want to erase the device before giving it away or the app recommended a reset.
- WARNING: a factory reset deletes registration, saved My Sonos content and music services from this product.
- Unplug the power cord.
- Press and hold the Bluetooth button while you reconnect the power cord.
- Keep holding until the front light flashes orange and white; release when it flashes green and the product is ready to set up.
common
Reset was interrupted by a power cut or not completed.
- Repeat the reset procedure and ensure power is not interrupted during the process.
- If the light continues to flash white after reset, move the speaker closer to the router or consult Sonos support for further steps.
Frequently asked
Should I reset the Era 100 for setup issues?
Resetting erases all settings; first try restarting the app and speaker and verifying Wi‑Fi and app permissions.
The app can't find my Era 100 but the light is on — what now?
Make sure your phone is on the same Wi‑Fi network, grant the Sonos app local network access and enable Bluetooth temporarily.
Can I use Bluetooth to complete the setup?
Bluetooth may assist detection, but you must add the speaker to your Wi‑Fi network via the Sonos app.
What happens to my services after a reset?
Music services are removed from that speaker and must be re-added through your Sonos account in the app.
Other problems with this device
Era 100 won't connect to wifiEra 100 app can't find itFirst-time setup
Sources
Updated 2026-09-09 · plugfix.vercel.app