View signal strength, network connection status, and enable/disable mobile network and international roaming.
INSTRUCTIONS & INFO
From the home screen, press the Menu key.
Tap System settings.
Tap Mobile networks.
To enable data access over mobile network, tap Data enabled. 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.
Tap Data roaming to enable or disable data roaming. Note: Data roaming is off by default. Enabling Data roaming will allow the device to attach to foreign wireless network signals when available. International roaming charges will apply. This setting does not apply to voice access which requires additional provisioning for usage on international networks. To learn more, visit the AT&T International Calling website.
Tap OK to allow data roaming.
To quickly turn mobile data on or off, swipe down from the top of any screen to reveal the Notifications panel.