1. To view data usage via the Usage Manager, swipe to the home screen and tap the AT&T folder.
   Note: To check your current month's data usage dial *data# (*3282#) on your mobile phone to receive a text message with the current bill cycle's usage.
   
2. Tap Usage Manager.
   
3. Tap DATA USAGE.
   
4. To change the displayed billing cycle, tap the Data usage cycle drop-down.
   
5. To change the billing cycle start date, tap Change cycle.
   
6. Select the Desired date and tap SET.
   
7. To set a monthly data limit, tap the Limit mobile data check box.
   
8. Tap OK.
   
9. Drag the Warning marker up or down to set the level at which you will be warned about your monthly data usage.
   
10. Drag the Limit marker up or down to set the monthly data limit.
    
11. The data warning and limit will save automatically.
    
12. Scroll to view Data usage broken down by app.