Alcatel 3L (2020)
Android 10.0
1 Find "Mobile network"
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Network & internet.
Press Mobile network.
2 Turn data roaming on or off
Press the required SIM.
Press Roaming Mode.
Press the required setting.
3 Return to the home screen
Press the Home key to return to the home screen.