OPPO A77 5G
Android 12.0
Select network mode
There may be different network modes available depending on where you are. The network mode influences the data speeds your phone can achieve.
1. 1. Find "Preferred network type"
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Mobile network.
Press the name of the SIM.
Press Preferred network type.
2. 2. Select network mode
Press the required network mode.
3. 3. Return to the home screen
Press the Home key to return to the home screen.