How to operate the V3L model
To open the power outlet, you need to double tap the top power button quickly.
Be patient, as the unit will take about a second to start opening or closing.
The top button is located on the center of the lid. It is indicated by a faint "power" symbol.
If this does not work, ensure your fingers are dry. Ensure there is no water of moisture around the lid, and it is completely dry. Ask a friend to try.