Apple Logic Board 820-00687 Bios

Discussion in 'BIOS/UEFI' started by Rykono, Jan 13, 2018.

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  1. Rykono

    Rykono New Member

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    Looking for 820-00687 Bios, clean or not clean. I have cracked bios chip on my 820-00687. Thanks!
     
    #1 Rykono, Jan 13, 2018
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  2. technical

    technical Moderator Staff Member

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    820-00687 you see it above board this ?
    Screen Shot 2018-01-14 at 1.12.35 AM.
     
    #2 technical, Jan 13, 2018
  3. Rykono

    Rykono New Member

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    Which bios chip is this then?
     

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    #3 Rykono, Jan 13, 2018
  4. technical

    technical Moderator Staff Member

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    i ask code ? Please take send one photo motherboard code.
     
    #4 technical, Jan 13, 2018
  5. Rykono

    Rykono New Member

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    Here
     

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    #5 Rykono, Jan 13, 2018
  6. technical

    technical Moderator Staff Member

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    Here only is subboard it not is main board code. Stupid, Understand ? :fou: (fou):fou: (fou):fou: (fou)
     
    #6 technical, Jan 13, 2018
  7. Rykono

    Rykono New Member

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    Sorry i know communication is hard. I was confused as to why you sent me a picture of the subboard. Here all the codes.Take your pick.
     

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    #7 Rykono, Jan 13, 2018
  8. technical

    technical Moderator Staff Member

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    Old bios error what? Please backup and send i help build.
     
    #8 technical, Jan 13, 2018
  9. Rykono

    Rykono New Member

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    Cracked chip, need to reprogram a new chip can not pull data from current chip.
     
    #9 Rykono, Jan 13, 2018
  10. Rykono

    Rykono New Member

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    crack in corner of chip.
     

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    #10 Rykono, Jan 13, 2018
  11. technical

    technical Moderator Staff Member

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    i Unavailable bios this, you need wait i find...
     
    #11 technical, Jan 13, 2018
  12. Rykono

    Rykono New Member

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    Thank you for help.
    cảm ơn bạn
     
    #12 Rykono, Jan 13, 2018
  13. 01ifix

    01ifix Well-Known Member

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    have you try to read bios chip ?
    (desolder chip and solder wire to connect to your programmer ?
     
    #13 01ifix, Jan 14, 2018
  14. Rykono

    Rykono New Member

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    No Detection :confounded:
     
    #14 Rykono, Jan 14, 2018
  15. Rykono

    Rykono New Member

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    Well actually i reconnect wires and i can read, but chip is too new for my program.
     

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    #15 Rykono, Jan 14, 2018
  16. 01ifix

    01ifix Well-Known Member

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    1mb is incomplete bios , you have tl866 or what programmer you use ?
     
    #16 01ifix, Jan 14, 2018
  17. Rykono

    Rykono New Member

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    That read was using a CH431 programmer direct wired. I am going to try with a raspberry pi using https://www.flashrom.org/Flashrom. If flashrom does not work, i will order a TL866.
     
    #17 Rykono, Jan 14, 2018
  18. Rykono

    Rykono New Member

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    Any luck on finding the bios for this board? I have finally got a new bios chip.
     
    #18 Rykono, Jan 29, 2018
  19. technical

    technical Moderator Staff Member

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    How?
     
    #19 technical, Jan 29, 2018
  20. Rykono

    Rykono New Member

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    I had a broken bios chip, I got a new one from a 820-00244 board. Now i just need to reprogram. :fou: (fou)
     
    #20 Rykono, Jan 29, 2018
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