What to Do About Black Spots in Picture?

Step 1: Check for dust or smudges on the camera lens. Wipe it with alcohol.

Step 2: If black spots remain after wiping, there may be dust on the sensor inside the camera. If the black spot position doesn't affect the monitoring area or the area is small, it won't affect normal product use. However, if the black spot area is too large, contact the brand retailer's customer service department.