I've been searching to no avail, has anyone discovered a hack or workaround that enables auto-unlock on a Mid-2012 MacBook Pro? I know there were some released for enabling handoff and continuity on some pre-BLE Mac's. It's crazy that it doesn't work because there's no hardware difference. I'm typing this on a Mac Mini which auto-unlocks which is essentially identical to my 2012 MacBook Pro, just without the display. My MBP, of course, has BT4.0 (BTLE), and continuity and handoff works great. So I was hoping maybe someone has gotten a tweak to make this niche, but neat, feature work. Especially since the mid-2012 MBP is technically a 'current' model, one you can still buy from Apple.