How I check EFI version on Imac 27"?

Discussion in 'iMac' started by zinger123, Sep 16, 2011.

  1. zinger123 macrumors newbie

    zinger123

    Joined:
    Sep 13, 2011
    #1
    Hello.
    1.How to check the EFI version?
    2. How to install EFI 1.6 to Imac 27" with 4850 (late 2009) on LION 10.7
    I always get error massage - "this version cannot install with this system"!
     

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