Re: how do i get incoming text messages to make a sound
Go to: Settings>Privacy>Background apps. Make sure the 'Messaging + Skype' button is switched to 'On'. I had the same problem for the first few months of having the phone and it was REALLY annoying. Thankfully I discovered the solution while going through my settings menu, and after switching the button from 'Off' to 'On' it now works perfectly!