AAPL Stock: 123.31 ( + 0.54 )

Printed from

Apple posts another MacBook Pro EFI update

updated 09:00 pm EST, Tue February 28, 2012

Resolves graphics issue in late 2008 models

Following on from recent EFI updates for various MacBook Pro models, Apple this afternoon issued one specifically for the 15-inch, late 2008 model that resolves a graphics issue that can cause the internal display to flicker. The late 2008 MacBook Pro, also known as MacBookPro5,1 or MB470*/A or MB471*/A, was the first of the 15-inch "unibody" MacBook Pros with tapered sides like the MacBook Air.

The update can be applied to machines running either Leopard (10.5.8), Snow Leopard (10.6.8) or Lion (10.7.3), but only if they are running the latest or last updated versions of their respective operating systems. The file size is a mere 1.79MB but, as a firmware update, can only be applied while the notebook is connected to a power source and must not be interrupted while in progress. The update is available for all applicable MacBook Pros through Software Update or via Apple's support website.

by MacNN Staff



  1. derbbre

    Joined: Dec 1969



    Just in case people are checking their own systems, the MacBook Pro Late 2008 Model ID is MacBookPro5,1 not MacBook5,1 as stated in the article. The firmware update linked here applies to MacBookPro5,1

  1. PJL500

    Joined: Dec 1969


    Years later!

    Better late than never. I had given up on that one. (The forums seemed to suggest a bad chip.) It only effected the 9400M chip in mine so I abandoned it and I kept the 9600M GT as the default. This EFI Update out of the blue seems to work.

  1. ferdchet

    Joined: Dec 1969


    Not forgotten after all!

    I'm with PJL500 - I had given up on this too. I've had the logic board replaced once due to flickering, and the second time due to a failure of the integrated video. Now it appears the first logic board was fine and only needed this EFI update.

    The people in the Apple Store thought I was crazy "what? I don't see anything - looks fine to me" though unlike PJL I've seen it on both integrated and discrete adapters. Glad they cared enough to find a fix for machines now over 3 years old. h***, that last logic board replacement was covered outside of Apple Care thanks to the 90-day warranty on repairs. Lucky lucky.

Login Here

Not a member of the MacNN forums? Register now for free.


Network Headlines

Follow us on Facebook


Most Popular


Recent Reviews

15-inch MacBook Pro with Force Touch

Apple's 15-inch Retina MacBook Pro continues to be a popular notebook with professional users and prosumers looking for the ultimate ...

Typo keyboard for iPad

Following numerous legal shenanigans between Typo -- a company founded in part by Ryan Seacrest -- and the clear object of his physica ...

Entry-level 27-inch Retina iMac

The 27-inch Apple iMac with 5K Retina display is already one of the best value-for-money Macs that Apple has ever released. It was som ...


Most Commented