1 Find "Message Centre"
Slide your finger upwards on the screen.
Press Samsung.
Press Messages.
Press the menu icon.
Press Settings.
Press More settings.
Press Text messages.
Press Message Centre below the required SIM.
2 Enter the message centre number
Key in +35387699989 and press Set.
+35387699989
3 Return to the home screen
Press the Home key to return to the home screen.