Was stuck in recover loop (cwm),now in bootloop

I am using a gt i8552 Samsung galaxy grand Quattro , rooted with kingo root.
somewhere in an article I read supersu is better
so I tried installing supersu me pro
. But It showed I was not rooted with king/kingo root. so
I flashed supersu.zip from cwm the recovery I used.
anyway after some time it showed a message update binary
there were 2 options 1) normal.........2)cwm/twrp
obviously I chose normal .
it said installation failed
. I chose cwm recovery fro that moment on whenever I chose reboot system now it would reboot to cwm.
then after trying some options like shutdown(wouldn't work even if I waited 2hours )
reboot to bootloader(the only place else I could go other than cwm):confused:
I started surfing the internet . I got confused in a bootloop and recovery loop . I also tried flashing fixpermissions.zip
I tried factory resed wiped cache partition dalvik chache formatted /cache istalled a custom rom(cosmic rom for gti8552)
. thinking that it is a bootloop :silly: :rolleyes:. then I understood and I :eek:flashed stock recovery( http://d-h.st/hcA ) :eek: <<<<<<biggest mistake of me all
now I am in a boot loop I cannot access bootloader nor recovery . all I can see is samsung:eek::eek::eek:

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