How to set SMS ringtone in dopod D9000?

You can see short messages in the drop-down menus of settings, sounds, reminders and notifications, click the ringtone, and then change different ringtones.

If it's a song, find the ringtone folder in the memory, put the downloaded music in it, and put it together with the initial sounds, not in the MP3 folder, and then select the downloaded music from the settings, sounds and reminders.