LG LS970 Sprint - Applications Settings; Unknown Sources; Manage Applications; Running Services

Device Settings 71
2. Tap Data(Domestic), Data(International) or both to place a checkmark and activate the
function.
To use data services when Data Roam Guard is active:
 When a pop-up notification appears informing you that data roam charges may apply,
tap Connect or Always Connect to connect.
Sound Settings
In the Sound settings menu, you can configure call and notification ringtones, audio volumes, as
well as some related settings.
General Sound Settings
Incoming Calls
Notifications
Sound Feedback Settings
General Sound Settings
Use the following settings for such features as silent mode, vibrate, and overall device volume.
Vibrate and Silent Mode
1. Tap > > System settings > Sound > tab > Sound profile.
2. Tap one of the four options.
To set your device to always vibrate:
1. Tap > > System settings > Sound > Vibrate.
2. Tap Always.
To switch to silent mode:
1. Tap > > System settings > Sound.
2. Tap Silent mode. (A green checkmark will appear.)
– or 
Press the down Volume Button until you see on the screen.
– or 