Please follow the steps below to check whether the main brush is normal:
1. Check the main brush:
- Please remove the main brush cover first, then take out the main brush, check and clean the entanglement on the main brush.
2. Check the rotation of the main brush:
- After cleaning, please reinstall the main brush and check whether it rotates smoothly by hand.
3. Ensure that it is installed in place:
- When reinstalling the main brush, make sure that the main brush cover is in place around to ensure its normal use.
4. Restart the robot:
- If no entanglement is found after checking the main brush, please guide the user to manually restart the robot and restart the cleaning task. Observe whether the error still occurs.
5. After-sales support:
- If the error still occurs after restarting, please arrange after-sales service for further inspection and repair.

I have a L 40 Ultra 2 and I can not get it to just vacuum.  What do I need to do?

We'd like to better understand the issue — is the robot having trouble getting onto the carpet, or is it not cleaning the carpet area properly? In some cases, thick carpets can be misinterpreted by the robot as an obstacle. Let us know and we'll go from there.

The 3‑year warranty is quite comprehensive — we usually don’t suggest buying extra coverage.

Thats a poor answer from After Sales!
How do you do the reset?
Where is the "CANCEL Cleaning & Return to Dock" button on the app ???

side brush?

Please refer to this video — starting from 3:38. https://www.youtube.com/watch?v=ZZuHyxAI68E

We're not quite sure we understand — could you please describe the issue in more detail?

To help resolve this, please follow the step-by-step troubleshooting guide below:  

1. First, please confirm whether the base station is powered on normally. Check whether the rocker switch on the back of the base station is turned on and make sure that the indicator light of the base station is on normally.
2. Next, please check whether the adapter plug is loose or damaged. Re-insert the adapter. If the adapter is damaged, it is recommended to replace a spare adapter to charge the robot.
3. Please wipe the charging shrapnel on the charging base to ensure that the charging shrapnel can rebound normally. At the same time, also wipe the charging contact piece on the robot. Place the robot correctly in the base station for charging, charge for 2 to 3 hours, and observe the power information in the APP to see if it can charge normally.
4.Confirm whether the robot is placed upside down. If so, guide the user to correctly position the robot inside the charging station for charging.

If the problem persists after completing the above troubleshooting steps, please do not hesitate to contact us again.