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NEED APPLE MACBOOK PRO A1398 Conversion Discrete To UMA

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.
 
hai ,, i need mac a1286, 820-2915-b graphics conversion.thank u

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
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.
 
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hi,i have everything for programming gmux,without jumper.
works well with lcd glossy or matte.
 
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