Why doesn't my Samsung Galaxy Y boot even after a hard reset?

[AC Question]

Samsung Galaxy y does not boot even after hard reset

Hi,

Suddenly my Galaxy Y start to stuck at Samsung screen(not the initial Galaxy Y screen) and keep on restarting after that point.
I did hard reset from recovery mode when I have sdcard in it and found no luck
then I re did hard reset after removing sdcard and still no luck

What are other options I have to recover from this point?