Hi guys, a friend of mine owns a relatively old PowerBook which has not been used for ages. Neither the password for unlocking the system nor the current OSX version with all of its specs is known to us. Is it possible to go to an official store/service center to ask for a full repair and upgrade program? And how much would it cost? We also would like to save the data within the HD or extract it to another medium if possible! We are currently located in Beijing, China. Thanks in advance!