Robot vacuum leaves visible dust trails along walls or in corners.

Safety first: Turn the robot OFF and flip it over.

• 1. Check side brush presence: Ensure a side brush is installed and firmly attached.
• 2. Inspect bristles: If the bristles are bent, frayed, or very short, replace the side brush.
• 3. Clean around brush: Remove any debris that might prevent the side brush from reaching the floor properly.
• 4. Use genuine parts: Make sure the replacement side brush is a Yeedi-compatible model with correct length and stiffness.
• 5. Test edge cleaning: Run the robot along a wall and observe whether the side brush sweeps debris into the path of the main brush.

Warning: Do not operate the robot without a side brush in areas where edge cleaning is important; performance will be reduced.