SMS ringtones cannot be changed.

According to your description, please follow the following steps to set the ringtone of SMS:

1. If you want to set the phone's built-in ringtone as SMS ringtone, please do the following:

Information-Menu Key-Notification Information Settings-Ringtone-Select Ringtone

2. If you want to set your downloaded ringtone as SMS ringtone, please follow the following steps:

Please create a new notification folder in the SD card, and then put the songs in this folder. After putting it away, operate: information-menu key-notification information setting-ringtone-select ringtone.

Information vibration: information-menu key (left key)-notification information Set vibration check box.

If you have any comments, suggestions and comments, please click: support.samsung.com.cn/survey.