Default Led notification only Red

Hello guys,
Since j got my new phone a few weeks ago i noticed that the LED notification wasn't working.
Since today it started to work randomly, but it only shows a red light.
I've tried many different apps to control my led but every other color is just not working.
When i choose "green" for example, the led light just stays off.
When i choose "yellow" the light turns on, but it is just the red color.
Is there any way to fix this?

Sent from the Android beast: Galaxy Note 3