When connected to 4G LTE, the 4G LTE icon will be displayed in the Notification bar. Note:To learn more about the AT&T network, visit http://www.att.com/network.
From the home screen, select Menu.
Select Wireless & networks.
Then select More.
Select Cellular networks.
Select Mobile Data.
Select Standard Data, then select On. Note: Mobile data is on by default. Turning off the mobile data will not allow any data to be transferred over the wireless network. Wi-Fi access, voice function, and standard text messaging are still allowed. You can also turn data on/off using your myAT&T account. Learn more about disabling or activating AT&T Mobile Share member’s data usage by device.
To turn Standard Data off, from the Mobile Data menu, select Standard Data. Then select Off.