How to change the notification sounds in Lumia 950 & 950 XL?
You can customize the sound per app. It’s not very obvious in the Settings, so I’ll show you how to do it.
- Go to Settings (Swipe down from top of the screen and tap All Settings)
- Tap System > Notifications & actions
- Tap an app from the list to change its default notification sound
- Select a sound under the Notification sound list. You can tap the play button next to the sound for a preview.
You don’t need to pick the same sound for each one. For example, I’ve changed the notification sounds for the apps I frequently use: Messaging app, Facebook Messenger, Outlook Mail, 6tag, and Slack Beta.