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Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

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Accidental short on logic board

Hi, I wanted to flash DeMux on my machine to fix discrete GPU problems.

Unluckily I did not think (…) about disconnecting the battery cable before soldering the JTAG header on the board, and one of the wires did some short somewhere on the board (I heard the “zap”).

Now:

machine does not turn on

battery button does nothing

Plugging magsafe only does a **very** dim green light.

Is there a walk-through guide on what to check in this case?

Answer this question I have this problem too

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That happened to me when I tried to do the RealMacMods method, I ended up selling it for parts/not working on ebay.

Now I can’t answer your question but I recently got another computer with the same problem and I can say that for future reference there is a great software solution here:

https://gist.github.com/cdleon

Better than Dosdude1s method in my opinion because brightness control still works.

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marcov will be eternally grateful.
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