Why this problem is fix in my Samsung Sm-A300FU Custom binary.

[Android Central Question]

I Installed My Knox and it's says We Can not install My Knox on this device because we defected that a custom binary is or has previously been put on this device.
Why plze solve this problem fast.

 

[belodion]

Why plze solve this problem fast.

Members cannot necessarily do that. It depends on someone seeing the post, knowing the solution, then posting it. Different time zones also make fast responses uncertain.

 

[Rukbat]

Samsung terminated the My Knox service on December 19, 2017. After that time it can't be installed on any phone.