Restrict Data Usage by App - LG Lancet™ for Android
Some apps depend upon background data (transferring data when not directly in use). Restricting background data may cause those apps to stop functioning unless a Wi-Fi connection is available.
From a Home screen, navigate: Apps > Settings.
Tap Data usage.
Tap an app (located below the usage graph).
Tap Restrict background data. Enabled when a check mark is present.
If presented with Restrict background data message, review the message then tap OK.
Click here for info on setting data limits and warnings, changing the usage cycle on your device and viewing data usage by app.