Samsung SGH-M919 User Manual T-mobile Sgh-m919 Galaxy S4 English User Manual V - Page 35

2. Light (RGB) Sensor lets you use the ambient light level to adjust the screen brightness/contrast. This sensor decreases screen brightness in dim light. • In a bright light condition (outdoors), the sensors cause the device to increase the brightness and contrast for better viewing. • In dim light conditions, the device decreases the screen brightness to compensate. 3. Menu key displays a list of options available for the current screen. From the Home screen it displays Add apps and widgets, Create folder, Set wallpaper, Edit page, Search, and Settings options. 4. Home key displays the Home screen when pressed. Press and hold to display your recent apps, Task manager, and Remove all option. Double-press to activate S Voice. 5 12 11 1 10 2 9 8 3 7 4 56 Understanding Your Device 29