Mower shows E19 and cannot authenticate with cloud or app; sometimes after board replacement.

Safety first: No internal work is usually required, but if you open the mower, disconnect power first.

• Check app status: Ensure you are using the latest version of the Segway app and that your account is logged in correctly.
• Re‑add device: Remove the mower from your account in the app and perform the pairing process again, following on‑screen instructions.
• Stable network: Make sure the mower has a stable internet connection via Wi‑Fi or cellular during pairing.
• Contact support after board replacement: If the main board was recently replaced, Segway support may need to remotely pair the new board to your mower’s serial and cloud account.