Robot vacuum does not respond to any buttons, app commands, or remote; appears completely dead.

Safety first: Check for obvious damage or burning smell before attempting to charge.

• 1. Verify dock and adapter: Ensure the dock is powered and the adapter is working by testing another device or using a multimeter.
• 2. Force charge: Place the robot on the dock and leave it for several hours, even if no lights appear initially. Some deeply discharged batteries need time to recover.
• 3. Try power switch and reset: Toggle the power switch (if present) and press and hold the power button for 10–15 seconds.
• 4. Inspect battery connection: If comfortable, open the bottom cover and check that the battery connector is firmly seated and there is no corrosion.
• 5. If still no response: The main control board or internal power circuitry may have failed. Professional diagnosis and board replacement are required.