[Q] hard bricked samsung galaxy s duos topic

hi guys
My samsung galaxy s duos gt s 7562 has been dead because i tried to extend ram using swapper 2.
and during it failed and mobile hard bricked.

i cant go to any mode (like usb downloading mode, recovery etc)

on start mobile shows logo of samsung galaxy s duos and than then automatically switch off again start again same.

please give me any solution for this..


thanx in advance