View signal strength, network connection status, and enable/disable mobile network and international roaming.
INSTRUCTIONS & INFO
From the home screen, tap Settings. Note: Updating Cellular Data settings does not affect Wi-Fi access or options.
Tap General.
Tap Cellular.
Cellular Data:
Tap the Cellular Data switch to turn the access to cellular data networks on or off.
Data Roaming:
Tap the "Data Roaming" toggle to turn access to foreign networks on or off. Note: Leaving data roaming off will reduce unexpected usage and charges while roaming internationally. for more information on international roaming provisioning and rates.