Kcal vekanat

Hi,recently, on Android l, i unlock bootloader and my bionz and x-Reality is out of order.
I flash android4.4.2 build 757 and back bionz and x-Reality.
I want to stay on 4.4.2 and i want kcal(advanced color control)
What to do, what not to do?
Plz plz plz
I am very sad
Plz plz plz

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