Firmware update on 5,1.

Discussion in 'MacBook' started by east85, Mar 11, 2012.

  1. east85, Mar 11, 2012
    Last edited: Mar 11, 2012

    east85 macrumors 65816


    Jun 24, 2010
    Hi, I have a few questions regarding my firmware.

    1. Should I upgrade my firmware even if everything works fine ATM?
    2. I have 8GB of RAM installed. I understand that years back, firmware had an effect on this capability. Will the newest update break that?

    MB51.007D.B03 is what I am on now. Update to MB51.007D.003 (EFI 1.3) is available.
    1.32f8 (SMC 1.2) SMC is current.

  2. biohead macrumors 6502

    Jun 18, 2010
    West Drayton, UK
    Your current EFI MB51.007D.B03 is NEWER than MB51.007D.003.

    MB51.007D.003 is 1.3
    MB51.007D.B03 is 1.4
  3. east85 thread starter macrumors 65816


    Jun 24, 2010
    Thanks for clearing that up. I am still however confused, but because of this. This is on Apple's website. It seems the listed firmware is 1.3 and not 1.4. Maybe they simply need to update the website to reflect 1.4?



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