Hard Reset Samsung Galaxy Y Duos Gt-s6102

I will do this success.

1.press upper voume button + menu + power button
2. rebbooting screen will appear with options like android system recovery, android system recovery rebbot system, apply update from sdcar, wipe data/factory reset, wipe cache partition...
3. choose "wipe data/factory reset" option
4. select yes and delete all.... select options through volume key
5. press rebbot now
6. handset formatted and back to normal state
7. successfully done