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Samsung Galaxy S7 edge
Troubleshooting
If your device isn't working properly, you can try several solutions to solve the problem.
In most cases you can solve the problem by following these guidelines:
1 Find "Text messages"
Press Messages.
Press MORE.
Press Settings.
Press More settings.
Press Text messages.
2 Save the message centre number
Press Message centre.
Key in +41794999000 and press SET.
3 Return to the Home screen
Press the Home key to end the session and return to the Home screen.