You need to calibrate the Gemini 20 by following these steps.
1) Power on the Gemini 20 and wait for it to boot up.
2) Press and hold the power button until you see a blue light on the front of the device.
3) Turn off your lights and move around in a dark room.
4) Open up your Gemini 20 and point it towards a bright light source, such as a lamp or window.
5) Press and