1 Find "Dual SIM and mobile network"
Press Settings.
Press Dual SIM and mobile network.
2 Turn mobile data on or off
Press the indicator next to "Mobile Data" to turn the function on or off.
3 Turn use of mobile data for applications on or off
Press Apps using Wi-Fi and mobile data.
Press the required application.
Press the required setting.
4 Return to the home screen
Press the Home key to return to the home screen.