debrick image for samsung galaxy core.

hi im noobie here, i recently hard bricked my samsung galaxy core gt i8262. please help. when im trying to turn it on it just vibrating. no download mode nor recovery mode it just vibrate. i tried to imstall its firmware through odin but it failed. but odin still detects my phone. someone told me to try find a debrih img for my androind phone. please someone help.