Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

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No power, no charge, no boot

HI, i had acquire this macbook recently. The owner describe that the macbook suddenly stop turning on one day.

It does not hold a charge, the battery indicator is dead, when i press the power button nothing happen at all. Is there anything that would cause this besides a dead board, or we can conclude that the logic board is dead?

Is there anything I can do to troubleshoot? Also, if it's a faulty logic board, what's likely is faulty on the logic board (assuming it's just die on itself, not water damage or etc.)?

Answered! View the answer I have this problem too

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What does the mag-safe light do?

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@mayer nothing,no light

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Use a multimeter and test the pin out on the mag-safe, you may not be getting any power. Here's the pin out on the left side of the page: https://en.wikipedia.org/wiki/MagSafe

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@mayer I have a few known working MagSafe, but none work with this MacBook.could it be the connector on the MacBook?

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If the mag-safe adapter is known good, the next thing to go for is the board: MacBook Pro 13" Unibody Mid 2012 MagSafe DC-In Board Replacement

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@mayer exchange it with one the working board, no light, and nothing at all.

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Open it and see if it's corroded or even hooked up correctly.

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@mayer the dc-in board is previously working with another MacBook, I hooked it correctly and tried two times. Still no light and no power.

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cheelam1220 will be eternally grateful.
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