Using the BIGTREETECH PI TFT50 Screen Board is easy. First, connect the 5 - inch touch screen to your Raspberry PI. This will turn it into a great Klipper display for your Voron printer. When you start using it, if you have the v2.0 model, use the knob to adjust the backlight. For the v2.1 model, use the two buttons. As for maintenance, keep the screen clean with a soft cloth. Avoid using harsh chemicals. If you notice any issues with the display or connection, double - check the cables. And don't forget to refer to the pictures to understand the difference between the v2.0 and v2.1 models clearly.