Here are a few tips on how to change your ringtone or notification sound:

1. Open the Settings Menu:

   Open the «Settings» menu on your device.

2. Look for the «Sounds» or «Sounds and Notifications» tab:

   Find the «Sounds» or «Sounds and Notifications» tab and open that section.

3. Choose your desired sound:

   Decide which sound you want as your notification sound and set it as default.

4. Save your changes:

   Save the changes that you have made and exit the «Settings» menu.