Mobile network settings
Note that you can't adjust mobile network settings when Airplane mode is selected. The settings available may vary depending on your device and plan.
GData enabled. Check to turn data access on for all available mobile networks.
GBefore turning this option off, which may cause your device or apps to stop functioning correctly, consider using the mobile data limits available under Settings > Wireless & networks > Data usage.
GData roaming. Prevents your device from transmitting data over other carriers' networks when you leave an area that is covered by your own carrier's networks. This is one way to to control expenses if your mobile data contract doesn't include data roaming.
With Data roaming unchecked, you can still transmit data over
GNetwork mode. Allows you to choose between using both LTE and CDMA, or just CDMA.
GSystem select. Allows you to determine when roaming can occur over a CDMA network. With Home selected, you are restricted to your carrier's network for both voice and data.
Related settings
Settings > Wireless & networks > Data usage
Settings > Wireless & networks > More > Airplane mode
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