How do the lifting side brushes work?

1. During S-shaped cleaning, the robot automatically lowers the two brushes on the leading side and the lower brush on the trailing side to clean corners and detect frames/obstacles. The upper brush on the trailing side remains lifted to prevent secondary pollution of the cleaned area.
2. Active in: Fast, Deep, Thorough, Edge, Zone, and Heavy-Duty cleaning modes.
3. Inactive (Always Lifted): Spot clean mode, Remote Control mode, and Frameless glass scenarios.