SAMSUNG A5 PATTERN / PASSWORD UNLOCK . [HARD RESET]
1 . At the beginning switch off your mobile phone by holding down the Power rocker for a short while.
2 . Afterwards press and hold together: Volume Up + Home + Power button for a couple of seconds.
3 . As soon as the Samsung Logo appears release held keys
4 . In the next step select from menu "wipe data / factory reset" using Volume buttons to navigate and Home button to confirm
5 . Then choose "Yes -- delete all user data" to confirm the whole operation
6 . After that select option "reboot system now''
7. Well done! The hard reset has just been performed