Lefant Cloud / Local Communication Issue

Robot vacuum does not respond to app commands, but Wi‑Fi indicator shows connected.

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Possible Causes

App version outdated, Robot firmware incompatible with app, Router blocking outbound connections, Internal communication bug

How to Fix / Troubleshooting

Safety: No hardware access is required.

  • Step 1 – Update app: Install the latest version of the Lefant app from the official app store.
  • Step 2 – Update firmware: In the app, check for robot firmware updates and install if available.
  • Step 3 – Reboot network: Restart your Wi‑Fi router and the robot.
  • Step 4 – Rebind device: Remove the robot from the app and add it again as a new device.
  • If still unresponsive: There may be a firmware or mainboard communication fault requiring service.
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Repair Difficulty

Very Easy 1/5

Required Part

Main Control Board (Communication Subsystem)
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