I suddenly lost the sound notification when receiving SMS, but I still have the vibration. I tried a lot of things, but nothing worked. At last I took a backup through Kies and did a factory reset. When I restored the data a lot of the data were lost (- what did I do wrong), but the SMS notification sound worked.
Now one day after the reset it has stopped giving sound notification again. :-(
When I go into Settings->My device->Sound->Notifications and change the notification sound, no sound is played.
Thanks in advance!