Access the sound settings: Open the Settings app on your Android device and navigate to the Sound or Sound & Vibration settings.

Set the ringtone: Within the sound settings, find the option to set a custom tonos de llamada. Depending on your Android version and device, this option may be labeled as Phone Ringtone, Default Ringtone, or something similar. Tap on this option and select the trimmed audio file you saved as your custom ringtone.

Save the changes: After selecting the custom ringtone, save the changes, and exit the settings.