OPPO Reno4 Pro 5G

OPPO Reno4 Pro 5G

Android 10.0

I can't make voice calls on my OPPO Reno4 Pro 5G Android 10.0

Cause 12 of 12: Fixed dialling is turned on

When you turn on fixed dialling, you can only call predefined numbers and do emergency calls.

Solution: Turn off fixed dialling.

Step 1 of 12

Find "Fixed Dialling Numbers"

Press the phone icon.

Step 2 of 12

Find "Fixed Dialling Numbers"

Press the menu icon.

Step 3 of 12

Find "Fixed Dialling Numbers"

Press Settings.

Step 4 of 12

Find "Fixed Dialling Numbers"

Press Calling accounts.

Step 5 of 12

Find "Fixed Dialling Numbers"

Press Carrier Call Settings.

Step 6 of 12

Find "Fixed Dialling Numbers"

Press Fixed Dialling Numbers.

Step 7 of 12

Turn on fixed dialling

Press the required SIM.

Step 8 of 12

Turn on fixed dialling

Press Enable FDN.

1111

1111

1111

Step 9 of 12

Turn on fixed dialling

Key in your PIN2 and press OK. The default PIN2 is 1111.

Step 10 of 12

Turn off fixed dialling

Press Disable FDN.

1111

1111

1111

Step 11 of 12

Turn off fixed dialling

Key in your PIN2 and press OK. The default PIN2 is 1111.

Step 12 of 12

Return to the home screen

Press the Home key to return to the home screen.

1 Find "Fixed Dialling Numbers"

Press the phone icon.

Press the menu icon.

Press Settings.

Press Calling accounts.

Press Carrier Call Settings.

Press Fixed Dialling Numbers.

2 Turn on fixed dialling

Press the required SIM.

Press Enable FDN.

Key in your PIN2 and press OK. The default PIN2 is 1111.

1111

3 Turn off fixed dialling

Press Disable FDN.

Key in your PIN2 and press OK. The default PIN2 is 1111.

1111

4 Return to the home screen

Press the Home key to return to the home screen.