That message is perfectly fine on custom kernels. It's just because it's not signed by Samsung is all.
Sent from my SM-N9005 using XDA Premium 4 mobile app
The people of XDA, including the Devs. Do not have to help you. We all choose to help. Everyone also starts somewhere.
City I live in makes and invented the Kitkat... I run Kitkat on my device. Aww how cute.