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Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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Heat / Fluid Spill issues

OK, so, here's a bit of an interesting problem.

I have a 13” MacBook Pro 2009, that's had light fluid spill. Starts up, but got really hot around the area where the charger plugs into the machine (not the area where the battery is).

I thought it might be the charging port, so I cleaned that out, and am somewhat afraid I might have cleaned it too well, as I'm not sure the bare metal is supposed to be showing (see picture below).

Anyhow, it gets slightly less hot now, but during install still gets a bit warm on the quarter of the machine that's on the corner where power plugs in. (not super hot, maybe 35-37*C)

During install, power seems to indicate battery is charing, but without percentage, and I'm not even sure system recognizes battery. When charger is removed, all power dies.

Does this system sound like it's safe running? Mainly asking as I don't want anything to explode in my face.

No signs of fluid spill damage inside as far as I can tell.

Thanks :)

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Update: Got El Capitan installed, up in the corner on battery, there's an exclamation mark saying 'replace now'.


It also shows charging percentages, but even when showing at 30%, the moment one removes the charger, laptop dies. Mainly I'm wondering if this is safe to use.


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HI @opux ,

The problem you are having is probably due to the liquid spill and the issue could be the following;

  1. The battery charging circuit is damaged, suspecting that the diode on the input that merges the battery and the charger line is faulty. It happens on older Macbooks, seen that before. Sometimes it can even occur without any exposure to liquid.
  2. Faulty battery (due to water spill or age)

The bare metal showing is not a huge issue, you only removed the contact damper plastic/silicone stickers that hide the bare magnets. You should feel that the charging connector holds stronger on the magnets now.

I would take out the whole motherboard and have a closer look to make sure that there are no other parts liquid damaged.

If I were you, I would take out the battery until you diagnosed where the fault lies, in case you (further) damage your battery as it might be saved.

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Thanks! Sorry for being awal on this post. Decided it was above my paygrade and sold it on..


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@opux - Well its time to replace your MacBook Pro Unibody 13" and 15" MagSafe DC-In Board as its contacts are carbon’ed up from arcing!

You see the four objects that surround the contact block is the magnets from within your knock off charger which came unglued so the connections are not mating cleanly.

Here’s a good picture of what things need to look like. Note the nice shiny gold contacts and the magnet is part of the cord end and is one unit not segmented.

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Here’s another view of what the socket should look like (both MagSafe & MagSafe2)

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Note the white plastic contact block is proud of the base (also plastic) unlike yours as its surrounded by the broken off magnets from the knock off charger.

Here’s more on knock off chargers!

And you’ll need to get a REAL Apple unit to replace your now broken charger Apple 60W MagSafe Power Adapter (for MacBook and 13-inch MacBook Pro) Only buy it from an Apple Store or Apple’s online store or authorized Apple dealer. Amazon & eBay only sell knockoffs! No matter what they tell you. Look at what it cost you already going cheap is not wise.

MacBook Pro Unibody 13" and 15" MagSafe DC-In Board Изображение


MacBook Pro Unibody 13" and 15" MagSafe DC-In Board


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