OPPO A57 4G

OPPO A57 4G

Android 12.0

I can't make voice calls on my OPPO A57 4G Android 12.0

Cause 2 of 12: Flight mode is turned on

When flight mode is turned on, all wireless connections on the phone are turned off, including the connection to the mobile network.

Solution: Turn off flight mode.

Step 1 of 3

Turn flight mode on or off

Slide two fingers downwards starting from the top of the screen.

Step 2 of 3

Turn flight mode on or off

Press the flight mode icon to turn the function on or off.

Step 3 of 3

Return to the home screen

Press the Home key to return to the home screen.

1 Turn flight mode on or off

Slide two fingers downwards starting from the top of the screen.
Press the flight mode icon to turn the function on or off.

2 Return to the home screen

Press the Home key to return to the home screen.

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