Question Knox Bootloader help!

i'm sorry if i'm increasing the posts about bootloader but i need some final advices to my problem.

as usual Note II N7100 with knox warranty avoided, i tried so many tricks and i flashed different version of roms but nothing has change a bit, instead my phone now does not accept any rom has the MJ5 bootloader.
so has someone any new brilliant idea to fix that!? and 10x.