USE THIS METHOD FOR hard reset your Samsung Samsung I5700 Galaxy Spica Android phone:press *2767*3855#or key combo
PRESS VOLUME DOWN + CALL + DOWN ( OK DOWN ) + POWER ON (pls try other methods too if this is not working)
or PRESS VOLUME DOWN + CALL +END keys together.
PRESS both CALL + OK + END keys / buttons together for 10 sec.
If you have the too many incorrect patterns issue, try to block gmail account then type NULL for password. It works on older SW versions.
Other trick on locked phone if you call your locked phone then (back key ) go into Menu> security settings to take off the lock pattern.