1. Open your web browser (Chrome, Firefox, Internet Explorer, or Edge)
2. In the address bar, type the IP address followed by:5000 e.g., 192.168.1.194:5000, and press enter.
If you don’t know your IP you can find it with this tutorial here.
3. Go to Settings->Editor
4. Go to Sectional Map Settings. You can change the brightness by changing the “High Brightness” value between 0 and 255.
5. Go to Settings-> Save Config File
6. Done. Wait a couple of minutes till the new config file is reloaded. If the brightness doesn’t change, unplug the map from the power source and plug it in again.