HT1455: Mac OS X: Starting up in Safe ModeLearn about Mac OS X: Starting up in Safe Mode
Currently Being ModeratedFeb 10, 2013 11:49 AM (in response to monie110)
Wow, sounds like Firmware protection is setup!?
Firmware password protection in Mac OS X ...
It would block usage of all the startup keys, like C, N, T, D, CMD+s, CMD+Option+p+r, CMD +v, Option boot will show a lock, and Shift, as well as booting from anything but the Hard Drive.
Force Removing Password Protection
1) Add or remove DIMMs to change the total amount of RAM in the computer.
2) Then, the PRAM must be reset 3 times. (Command + Option + P + R).