Read help info
You can limit your data usage by turning off mobile data. You'll then not be able to access the internet using the mobile network. You can still use Wi-Fi even though mobile data is turned off.
1. Find "Function on/off"
Press the Navigation key.
Select Mobile data.
Select Function on/off.
2. Turn mobile data on or off
Press the Left selection key to turn on the function.
Select Off to turn off the function.
3. Return to the home screen
Press Disconnect to return to the home screen.