I am locked out with a pin login screen.
iMac boots up to a screen that states "Enter your system lock PIN code to unlock this Mac. Your Mac locked. For Unlock write supappleid11@yahoo.com " I have attempted a safe boot with the same login in screen. I have also tried to option boot and rather than seeing the recover environment I see a padlock icon and password field. On both screens the mouse works but the keyboard will not type into either the password or pin fileds. I have used multiple keyboards and attempted to boot to a .iso on a usb. I'm not sure what eles to do?
iMac (27-inch Mid 2010), OS X El Capitan (10.11.1)