From the Home screen, drag down the Notification panel.
Tap the Settings icon.
Tap Connections.
Tap Data usage.
Tap Mobile data usage.
Tap the Settings icon.
Tap Billing cycle.
Select a new usage cycle reset date.
Tap SET.
Switch Apply data usage limit to ON.
Tap Data usage warning.
Enter your data warning level.
Tap SET.
Tap Data usage limit.
Enter your data limit.
Tap SET.
You've completed the steps!
