Who I have the same questioned this solution

When I was using the stock Message + that comes with the phone on Verizon, whenever I would get a text and the phone screen was off, it would turn on automatically. this got really annoying as a LED indication that I have a message is more than enough. I even tried turning off all notifications and it was still happening. I switched to other SMS text apps, and it seems to have resolved the screen coming on, but the LED light doesn't light up, so now I wont know when I'm getting messages. Today I have also noticed when not even getting any notification the screen will randomly turn on the lock screen. What is wrong with this phone?