“- Press and hold the left Control and Command buttons with right Shift button for a total of 7 seconds.
- Without releasing them, press the Power button and hold together for an additional 7 seconds until your laptop shuts down. The login screen may flash for a second so don’t prematurely release the keys until the machine is off.
- For your next startup, your Mac can only be powered on by us ing the Power button or closing and opening the lid.“

Nem keveset kellett keresgetnem, de ez nálam működik.