My phone only has Firefly as a ringtone. When I go to change it I get a message saying “choose path” then it has folders that are empty. The same thing happens with the notification sounds. Did it not come with any?
Every samsung phone come with several ringtones. Dont know why they are not visible, you can download new one from Zedge app or online.
Use Zedge android app for mobile ringtones…its helpful
Maybe you need converter music to firefly