Samsung Galaxy S20 Ultra 5G

Samsung Galaxy S20 Ultra 5G

Android 10.0

I can't make voice calls on my Samsung Galaxy S20 Ultra 5G Android 10.0

Cause 4 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 10

Find "Fixed dialling numbers"

Press the phone icon.

Step 2 of 10

Find "Fixed dialling numbers"

Press the menu icon.

Step 3 of 10

Find "Fixed dialling numbers"

Press Settings.

Step 4 of 10

Find "Fixed dialling numbers"

Press Supplementary services.

Step 5 of 10

Find "Fixed dialling numbers"

Press Fixed dialling numbers.

Step 6 of 10

Turn on fixed dialling

Press Enable FDN.

1111

1111

1111

Step 7 of 10

Turn on fixed dialling

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

Step 8 of 10

Turn off fixed dialling

Press Disable FDN.

1111

1111

1111

Step 9 of 10

Turn off fixed dialling

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

Step 10 of 10

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 Supplementary services.

Press Fixed dialling numbers.

2 Turn on fixed dialling

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.