Comments on: Disable an Open Firmware (EFI) password on an Intel Mac

By: Guest

Guest — Wed, 23 Feb 2011 06:41:32 +0000

Thanks Richard works perfect.

By: Richard

Richard — Thu, 25 Nov 2010 18:02:00 +0000

If you have the Firmware password holding down option during boot will still work. Otherwise try the above.

If you don't have the password and your OS is corrupt and the above does not work:
1. Change your memory size. ( Add/Remove one stick)
2. Boot doing a PR Reset.
3. Turn off computer.
4. Boot from CD normally.

By: vaskenhauri

vaskenhauri — Mon, 15 Nov 2010 16:45:35 +0000

@Scot,

As far as I remember, the workaround described in this article will allow you to boot off the CD without entering the EFI password. Can you try the instructions and let folks know whether they still work?

By: vaskenhauri

vaskenhauri — Mon, 15 Nov 2010 16:45:35 +0000

@Scot,

As far as I remember, the workaround described in this article will allow you to reset the EFI password. Can you try the instructions and let folks know whether they still work?

By: Scot

Scot — Fri, 12 Nov 2010 16:59:56 +0000

I notice that by having the EFI Firmware password in place, holding down the C Key at boot up is disabled, what do I do in the event my OSX installation becomes corrupt and I need to boot off my Snow Leopard disc again to reinstall the OS, is this now impossible to do ?. Its an Intel based mac I have btw running Snow Leopard

By: Don Quijote

Don Quijote — Sun, 03 Oct 2010 23:49:12 +0000

Thank you! This worked great!

By: Dexter

Dexter — Wed, 03 Mar 2010 20:02:46 +0000

Perfect, It's Work