Help installing recovery

Hi, just bought an S5 G900F (international version)... and i wanted to install a custom recovery than root.. than flash rom. Im experienced in this matter... but ... im having all sorts of odd problems. I tried several reocvery (openrecovery, twrp, philztouch)... non stick when i reboot?
I tried several times... odin says everything installed fine.
I wanted to install cf-root... i did it win odin and when phone restarted it says: "recovery booting.... recovery is not seandoird enforcing ... set warranty bit : recovery
Who can help me??