OPPO A72

Android 10.0

I can't make voice calls on my OPPO A72 Android 10.0

Cause 1 of 3: There's a connection error

If your phone doesn't receive any calls when someone calls you, it may be caused by an unknown connection error.

Step 1 of 2

Restart your phone

Press On/Off.

Step 2 of 2

Restart your phone

Simultaneously, press and hold the Bottom volume key and keep them both pressed until your phone restarts.

Press On/Off.

Simultaneously, press and hold the Bottom volume key and keep them both pressed until your phone restarts.