Go to My Files, internal storage. If there is a Media folder, open it (if not, create it) and if there is a Notifications folder, open it (if not, create it)
Copy your sounds into this folder & they will be available as a custom notification sound
https://youtu.be/q5K4zDbOJGo
Copy your sounds into this folder & they will be available as a custom notification sound
https://youtu.be/q5K4zDbOJGo