I'm using a Droid Turbo Maxx. My text is open to a contact and when they send me a text, I do not get a sound.
MNETO, I rely heavily on text, so I know how important it is to be alerted when a new message arrives. We are here to assist. We would like to start by gathering more information to determine if this is working as designed or if there is a problem. How is everything else on the phone working? Have you heard a sound in the past with the message thread open? Do you recall any recent changes to the phone?