Step 7: Return to the applications list, and launch Browser to check if the network function is available.
4-2 DEVICE
Sound
Tap this option to enter the Sound settings interface. Settings include PREDEFINED PROFILES
General Silent Meeting Outdoor and Audio enhancer for earphone. Tap 
Settings include Power audio playback Volumes, NOTIFICATIONS (Default notification) and SYSTEM (Touch sounds, Screen lock sound and Vibrate on touch).
Display
Display settings include PERSONALIZE(Lock screen notifications,Theme and Wallpaper) and DISPLAY (Brightness, Daydream, Font size, HDMI settings and Sleep) .
Wallpaper: You can select any pictures from ES File Explorer, Gallery, Live Wallpapers, Video Wallpaper and Wallpapers as your wallpaper.
Brightness: You can manually adjust the brightness or select Automatic brightness, which allows your IdeaTab to adjust screen brightness automatically according to ambient light.