If your ScoreCam device is dimming try turning off the "Dim Display when Connected" on your ScoreCam device. Do this by going to Settings -> ScoreBoard Remote -> then disabling (turn off) "Dim Display when Connected". 

If this issue is occuring on your Remote device you can change this by going to your device's Settings app -> Display & Brightness, and adjusting the brightness of your device there. 

For more information on how to your change your device's brightness: Adjust the brightness and color temperature on your device