A
Android Central Question
This drove me crazy! None of the responses worked. But through persistence I finally figured it out. If you press and hold any app like the text notification, it will give you a description of the "importance" of the notification. If your importance is set to Medium or Low, there is "No Sound". If you do "High" you get sound. If you do "Urgent" you get both sound and a pop up... This cured my wife's phone's issue..