csrutil: failed to modify system integrity configuration. This tool needs to be executed from the Recovery OS. I can't reenable SIP again !

[Davman Ypsp]

Hi, I think I have messed up my mac's firmware. I disabled SIP from revovery and installed refind, BUT since I did that my mac is extremely slow to boot to anything (about 10 min). Also when boots is extremely slow and the beach ball all the time. I have changed the HDD to another with a working OS X install, and it is extremely slow. I hope i didn't broke anything.
I reseted SMC and PRAM, and nothing. I tried to enable SIP again from the recovery but I get the message:

csrutil: failed to modify system integrity configuration. This tool needs to be executed from the Recovery OS

Which is what I'm doing, and somehow I can't reenable it again.

Is there any way to reset the mac firmware?

What can I do to make my mac work again?

Thanks

[Davman Ypsp]

This is what I get from the Recovery Partition when I try to enable SIP again:

EDIT: I'm on El Capitan, the latest available for this machine.

[Davman Ypsp]

I finally fixed it! It seemed that the firmware password was preventing me from clearing the PRAM. I managed to remove the firmware password and then cleared the PRAM, and everything is working allright again.