Android One Fullscreen problem

Hi friends;
I want to remove belove navigation bar you can see on picture igo primo software v9.6.29.595985. My phone General Mobile Android One v6.0.1 screen resolution is 720×1080(HD). I try to edited sys file but not succeded also on the immersive mod same problem i have. My sys file attached on my post.
Thanks for help.

Attached Files

• sys.txt (9.7 KB)