1. From the home screen, tap the Apps icon.
   Note: To check current prepaid balance, please tap the 'Apps icon', then tap 'Data Balance.'
   
2. Swipe to, then tap Usage Manager.
   
3. Tap Data usage.
   
4. Tap Set mobile data limit.
   
5. Tap OK.
   
6. Touch and drag the Limit and warning sliders to set the mobile data limit.
   Note: When the mobile data limit is active and has been reached, the mobile data block will remain in effect until mobile data is manually re-enabled on the device, the limit threshold is changed to a higher value, or a new data usage cycle begins. If you set data usage limits on your device, they do not communicate with AT&T systems. You will still receive AT&T system generated notifications as you approach your data limits.
   
7. Tap the Date to adjust the billing usage cycle.
   
8. The total data usage is displayed for the Selected data usage cycle.
   
9. Scroll to, then tap the Desired app to view individual app data usage.