efi update 2.5 does not apply

I cannot apply the MacBook Pro EFI update 2.5, and now the SMC update. The updater tells me they are available, but after restarting, I see they have not been applied, and the updater agrees, and tells me they are still available.


When the computer restarts, I'm supposed to see progress bar duting the update? If so, that never comes up.

MacBook Pro, Mac OS X (10.7.2)

Posted on Nov 11, 2011 1:46 PM

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16 replies

Nov 12, 2011 2:39 PM in response to eww

Yes, it's telling me they are available. And it starts the update process, then restarts the computer. That's where, in the past, I have seen the progress bar during booting, indicating that the firmware is being updated, but it never happens this time. I have also verified that the EFI update is available for this model, etc., MacBook Pro.

Jan 24, 2012 12:29 PM in response to Juan Jansen

Someone from Apple will be happy to help you if you call AppleCare or make a free Genius Bar sppointment at an Apple Store. No one from Apple will help you in these forums, because Apple doesn't provide tech support here. These are user-to-user forums in which Mac owners help each other out. Apple does not participate, by and large, and when an Apple employee does participate, it's an ASC host or moderator, not a tech support represetative.

Mar 6, 2012 2:41 AM in response to jepd

The problem appears in /var/log/install.log. Search for 'EFI' in this file. You will find the errors. In my case the EFI partition (?) was missing, the only solution was to do a complete clean reinstall, removing every (bootcamp) partition and start all over again from scratch. Things go faster when using a spare harddisk, swap it with your default one, install Lion 10.7.3 and update the EFI. Then swap back your SDD or default HDD.


Edit: and as always: make sure you have a current Time Machine backup. Also don't forget to backup your Bootcamp partitions seperately if installed.

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efi update 2.5 does not apply

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