Huawei P smart
Android 8.0
Select help topic
1. Find "SMS centre number"
Press the message icon.

Press More.

Press Settings.

Press Advanced.

Press SMS centre number.

2. Set the message centre number
Key in +447785014317 and press the save icon.

+447785014317
3. Return to the home screen
Press the Home key to return to the home screen.
