recovery is not seandroid enforcing

hi guys
i have a big problem i would really appreciate your help
i tried to root my S5 duos G900FD with CF-Auto-Root but it didn't work even though odin give me pass
now i get this massage recovery is not seandroid enforcing and the worst part here
is i can't get to download mode so i can't flash stock rom to fix it
the irony is when i used the file for G900F it worked fine :mad::mad::mad::(

------------------------------------------------------------------------------------------

i Finally managed to get to download mode after i kept pressing even it goes back to that error a few times

from xda-developers http://ift.tt/2cmwzrH
via IFTTT