I bought a late 2014 mac mini off of ebay. Can i still format it and install mac os on it with the mac being locked? If not how would i get it unlock? I ask the guy and all he told me was that he got about 50 of them and reselling them and he knows nothing about them. He just plugs them in and to sell if they turn on then shut it off and resell them. I been looking online to see. But most of them has you going into the frimware and resetting it. well thank you for any help i get.