Mid 2010 Model A1278 / 2.4 or 2.66 GHz Core 2 Duo processor

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MacBook Pro 13'' Mid-2010 won't turn on

Hi crews,

A friend of mine asked me to look into his dead MBP because the Apple care here in Germany refuses to repair this legacy device. It had the well-known "swollen battery issue" that destroyed the trackpad.

I replaced the swollen battery and carefully cleaned up the computer (there was a lot of dust inside). I didn't notice any trace of liquid damage. Everything looks okay.

The problem is that the computer doesn't turn on.

I tried the following steps:

  • SMC reset (disconnect the power supply, remove the battery, hold on the power button for 20 seconds). Then press the power button. No signs of life.
  • disconnect the display, the keyboard and try to short the power pads. No signs of life either.

The logic board seems to be dead. The battery charger does work as expected.

Is there anything I could try out except the above mentioned steps before I throw the logic board into the trash?

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Use a multimeter and test the mag-safe adapter, also examine the mag-safe board for output:

Are you getting a green light on the adapter? If it has a battery test button, what is it showing.

MacBook Pro 13" Unibody Mid 2010 DC-In Board Replacement

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Are you getting a green light on the adapter?

Yes, I do.

If it has a battery test button, what is it showing.

It shows that the battery is fully loaded (all eight LEDs are green).


Use a multimeter and test the mag-safe adapter.

I've just tried out another magsafe-adapter (I own several ones). Still no signs of life...


Try this type of SMC reset:

Shut down your Mac.

Unplug the MagSafe or USB-C power adapter from your computer.

Using the built-in keyboard, press Shift-Control-Option on the left side of the keyboard, then press the power button at the same time. Hold these keys and the power button for 10 seconds.

Release all keys.

Reconnect the power adapter.

Press the power button again to turn on your Mac.


Dear mayer,

I tried everything you listed above plus some of the "advanced" tricks. The board is definitely dead - it doesn't ever start in the SMC bypass mode.

I'm going to check fuses for sure but the chances that I'll be able to fix this board at home are very low.

Anyway, thank you very much for your help!


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Max Poliakovski will be eternally grateful.
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