820-2610-A bios

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  • koko16
    Member
    • Dec 2013
    • 10
    • Austria
    #1

    820-2610-A bios

    Hi
    I need good bios for MacBook Pro Unibody 17“ 2009
    A1297 mainboard 820-2610-A.
    Nordbridge mcp79mxt b3 , video G96 635 C1.
    Please, if have somebody this board to read the Bios.
    I bought already and tested 4 binary ( short vip account) from online Bios seller, but is overall the same corrupted bios .
    With this bios, Osx can be installed just on Russian language and keyboard layout work with the same characters.
    After Smc reset, Macbook started just with black screen.
    Thanks in advance.
    Tags: None
    • koko16
      Member
      • Dec 2013
      • 10
      • Austria
      #2
      Re: 820-2610-A bios

      This Macbook had start problems at the beginning, it could be started only randomly once every ten , if started power consumption was about 0,30 A.
      Then
      I have replaced mcp79mxt b3 and G96 635 c1 with new chips, because they was really brown from bad Reflow , after these operations and rewriting the bios, starts up and do it
      like is described on the firt post .
      With original Bios start up with Apple sound and Black screen.
      I have installed for test Montain Lion , installing was normally finished ( just on Rusian without other possibility) , but Osx can`t be loaded ,
      just restarting every time, with error window on the screen.
      Voltages are all normally without any ripple.
      Any ideas can be from bios or from vram ???
      Why after SMC reset restarted with black screen ????
      Last edited by koko16; 04-28-2018, 02:54 AM.

        Comment

        • String2016
          Badcaps Legend
          • Nov 2015
          • 2233
          • philippines
          #3
          Re: 820-2610-A bios

          here is your bios give feedback if it is working
          Attached Files

            Comment

            • koko16
              Member
              • Dec 2013
              • 10
              • Austria
              #4
              Re: 820-2610-A bios

              Thanks for your time and bios file .
              I tested it and results is the same . You tested it ?
              I had a bios file with this name from Network, I ask because I don’t now
              if I have really a bios problem. Maybe SMC wrong .
              It`s very strange .

                Comment

                • String2016
                  Badcaps Legend
                  • Nov 2015
                  • 2233
                  • philippines
                  #5
                  Re: 820-2610-A bios

                  that bios i gave is a working bios maybe your problem is not in the bios

                    Comment

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