I'm going to have Apple fix my 2011 MBP as part of their extended warranty program (https://www.apple.com/support/macbookpro-videoissues/). Do I need to bring in anything besides the MBP? Do I need to bring in the charger? Can I bring it in without the hard drive, for privacy's sake? If they need it with the hard drive, will they ask me for my password too?