Why doesn't my screen wake up when I get a text? And how do I get the notification LED back? S4

[AC Question]

I've gone through all the settings, restarted it twice and nothing. No notification of any sort of app notification, texting, whatsapp, messenger, Facebook, Twitter...

Any ideas?

 

[B. Diddy]

Welcome to Android Central! You could try an app like DynamicNotifications.