Answer to: no notification sound on text messagesIs it all text notifications or just SMS Pro and Chomp SMS? (Guessing it's stock SMS app since you uninstalled SMS Pro and Chomp SMS.) Go to the Stock SMS App > Softkey (Menu icon left of Home button) > Settings: See if Notifications is checked. If so, I suggest tapping the Softkey (Menu icon left of Home button) inside the Settings menu, then tapping on Restore Default Settings. If that helps or does, please let me know!