New LED colors for Umi Max

MihaiBGT

Hello!
I'd like to have more  notification led colors for my Umi Max phone, because I want to personalize the notification color for many contacts.
I've tried some apps from Google Play, such as Light Flow, Led Manager, Led Blinker Notifications or Ultimate Led, but none of these worked correctly (they didn't start the led when notifications received or the led chenges it's colors continuously).

Is there a way to get more RGB combinations for the notification LED and they to work as they should?
Thanks!