How do i change my Pantech Pursuit phone password?

I have gone back to my old Pantech Pursuit and i don't remember the original password i put on it. Is there anyway to just reboot it or anything like that or do I really need the old password in order to change it?|||Hi.you can try to perform a master reset on the phone to reset the code. Try going into settings and then security. Change password in there. if still having issues call Pantech