Go there (http://www.lacie.com/intl/support/faq/faq.htm?faqid=10708) follow the instruction... more than easy... note : drive must be off before pressing the button for ten sec.

Dear sir good day to rest the password .. you have to go to the factory settings and a step by step routine explained in the below http://www.lacie.com/intl/support/support_manifest.htm?id=10351&guideid=10604 good luck thank you