After installing your Tapo C120, please follow the two steps below to ensure a firm power connection. 1. Firmly plug in the power connector to the power port of the camera, and ensure no gap exists. Note: When plugging in the power connector, you may feel the resistance from the silicon cork inside the power port because of the waterproof design. It is necessary to plug in firmly until there is no gap between them. 2. Fix the power cord with adhesive tape or the provided cable clamp and screw. Note: To ensure a firm connection, fix the power cord at a distance of about 25 cm away from the power connector.