How do I reset the filter indicator on my Dreame robot vacuum after cleaning the filter?

Press and hold the Power button on the robot for about 3 seconds until the filter indicator stops blinking. If that doesn’t work, try the Reset button (triangle icon) with the same hold time. You can also use the “Filter Reset” option in the Dreame app. You must do this every time you clean the filter, or the robot will keep alerting you to change it.