NEED APPLE MACBOOK PRO A1398 Conversion Discrete To UMA

Discussion in 'BIOS/UEFI' started by 08ifix, Dec 20, 2016.

NEED APPLE MACBOOK PRO A1398 Conversion Discrete To UMA 5 5 1votes
5/5, 1 vote

  1. Jitendrakashyap

    Jitendrakashyap Well-Known Member

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    please upload the method for a1286 dis to uma
     
  2. kapann

    kapann New Member

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    I need apple a1286 graphic conversion
     
  3. technical

    technical Moderator Staff Member

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  4. Flavio Rezende

    Flavio Rezende Well-Known Member

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    its work on a1286 820-3330 B? this resources
     
  5. chipmunk

    chipmunk Well-Known Member

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    For 820-3330 resolder U9800 first!
    For 820-2914 or 820-2915 use CMIzapper Tiresias.
     
  6. Flavio Rezende

    Flavio Rezende Well-Known Member

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    on the board 820-3330 there is no u9800, there is u8900 it is the pwm of the gpu, if you mean it, is it just remove it and ready?

    Thank you
     
  7. chipmunk

    chipmunk Well-Known Member

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    I am messing up the 820-3330 and the 820-3332...
    Resolder U8900, or check the GPU VCORE voltage with an oscilloscope.
    If the GPU really is bad then our CMIzapper Tiresias should work on that model too.
     
  8. Flavio Rezende

    Flavio Rezende Well-Known Member

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    THK YOU VERY MUCH, I WILL TEST
     
  9. lapcarecenter

    lapcarecenter Well-Known Member

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    hai ,, i need mac a1286, 820-2915-b grapgics conversion.thank u
     
  10. technical

    technical Moderator Staff Member

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  11. chipmunk

    chipmunk Well-Known Member

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    You can use the CMIzapper Tiresias if you want to preserve the backlight control in High Sierra:
    http://www.cmizapper.com/products/tiresias-gpukiller.html
    To see how to mount:
    http://www.cmizapper.com/install/tiresias-820-2915.html
    Tiresias 820-2915
    cmizapper.com

    Advantages are:
    Easy to mount. No irreversible changes to the GMUX. No software to install. User can zap the PRAM safely. Backlight keys F1 and F2 work even in High Sierra / Mojave.
     
    #31 chipmunk, Jun 14, 2019
    Last edited: Jun 14, 2019
  12. 41ifix

    41ifix Well-Known Member

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  13. synapsea

    synapsea Well-Known Member

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  14. technical

    technical Moderator Staff Member

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    We convert without programming
     
  15. K-PAX

    K-PAX Well-Known Member

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    hi,i have everything for programming gmux,without jumper.
    works well with lcd glossy or matte.
     
    #35 K-PAX, Jul 18, 2019
    Last edited: Jul 18, 2019
  16. chipmunk

    chipmunk Well-Known Member

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    Including backlight control in High Sierra?
     
  17. K-PAX

    K-PAX Well-Known Member

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    yes,works well with high sierra
     
  18. chipmunk

    chipmunk Well-Known Member

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    You do the backlight in the GMUX or in software?
     
  19. K-PAX

    K-PAX Well-Known Member

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    in the gmux
     
  20. armands

    armands New Member

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    Hey, can you send or resell the gmux batch file?
     
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