Nevir NVR-TAB7 S53G User Manual page 29

General → System → Select the touch sound。
Adjust ringtone volume

Press 【+/-】 to adjust the ringtone volume.
 Change ringtone
In standby mode, open application list, then select Settings – Audio Profiles - General
- voice call ringtone or message ringtone.
Select a ringtone from the list, then select OK.

 Select wallpaper
1.In the standby mode, long press standby interface → Wallpaper → Select wallpaper
sources.
2.Select the image.
3. Set it as wallpaper.
Choose wallpaper from：
Wallpaper: set background
Live wallpaper: You can set live wallpaper.
video Wallpaper: set the background video.
Album: You can select the pictures from album to be wallpaper.
Adjust display brightness

In the setup menu to adjust screen brightness:
In standby mode, open the pull-up bar, then select Settings → Display →
Brightness.
1. Clear check box before auto-adjust brightness.
2. Drag the slider to adjust brightness level.
3. Select OK.
Brightness level of the display will affect the speed of the battery power to use up.
 Set unlock pattern
Set unlock pattern to prevent unauthorized use.
1. In standby mode, open application list, then select Settings → Security → Screen
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image.