Goo phone Galaxy S6 Root problem

Hello everybody!

My problem is, that I own a Goophone S6, and i can't root it. I've tried everything!!!

Methods I tried:

-SP Flash Tools and MTK Droid Tools (No CWM recovery)
-Kingroot
-Kingo Root
-VRoot
-RootGenius
-OneClickRoot
-iRoot
(I also saw a thread about here, but it doesn't work for me)

And Every method ends with Failure... I Really want to delete the unwanted ugly system apps, and replace them to the original Ported S6 apps, but I can't do this!! Please someone help me!

(sorry for my english)