What you want to ask is what should I do if the function keys on the control panel of the health pot are erased and I can't see clearly? The specific steps are as follows.

1. illuminate the control panel with a flashlight or strong light, observe the key positions from different angles, and find the logo.

2. Scrape your nails lightly on the control panel to see if you can reveal the signs on the buttons.

3. Find the instruction manual of the health pot and understand the position and function of each button on the control panel.