OPPO Reno4 Pro 5G
Android 10.0
1. Find "Settings"
Slide your finger upwards on the screen.
Press Contacts.
Slide your finger right on the screen.
Press Settings.
2. Import contacts from your SIM to your phone
Press Import.
Press the required SIM.
Press OK.
Press the fields next to the required contacts.
Press Import.
3. Return to the home screen
Press the Home key to return to the home screen.