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MacBook Pro 15" Unibody Mid 2009 Logic Board Replacement
Replace the logic board in your MacBook Pro 15" Unibody Mid 2009.
- Author: Andrew Bookholt
- Difficulty: Difficult
Use this guide to replace your bare logic board.
Sections
- Lower Case 2 steps
- Battery 4 steps
- Logic Board 21 steps
- Left Speaker 4 steps
- Microphone 1 step
- Logic Board Replacement 4 steps
Tools
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Step 3
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Battery
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Three special five-point Torx screws secure the battery to the upper case.
Use Apple specialty tool 922-9101 or iFixit's 5-point Torx driver to remove the two exposed five-point Torx security screws along the top edge of the battery.
A common 1.5 mm flathead screwdriver also works well enough to remove the screws.
You do not necessarily have to follow steps 3-6 to remove the battery in order to replace the hard drive. However it is recommended to remove all power sources from electronics before working on them.

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Step 7
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Logic Board
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Use a spudger to pry the fan connector straight up off the logic board.
It is useful to twist the spudger axially from beneath the fan cable wires to release the connector.
The fan socket and the fan connector can be seen in the second and third pictures. Be careful not to break the plastic fan socket off the logic board as you use your spudger to lift the fan connector straight up and out of its socket. The layout of the logic board shown in the second picture may look slightly different than your machine but the fan socket is the same.

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Step 11
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Apple sticks a small strip of clear plastic with adhesive applied to one side to the logic board behind the camera cable connector to keep it in its socket. When moving it out of the way, be sure not to break any surface-mount components off the logic board.
Hold the end of the cable retainer down with one finger while you use the tip of a spudger to slightly lift the other end and rotate it away from the camera cable connector.

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Step 20
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Remove the single 7 mm Phillips screw securing the display data cable retainer to the upper case.
This screw may remain captive in the display data cable ground loop. If replacing the display, be sure to transfer this screw to the new unit.
Remove the display data cable retainer from the upper case.

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Step 24
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Remove the following screws:
Seven 3.3 mm T6 Torx screws securing the logic board to the upper case.
Two 8 mm T6 Torx screws securing the DC-In board to the upper case.
Do not remove the logic board yet! There are components on the underside of the logic board attached to the the upper case that must first be disconnected.

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Step 35
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Carefully lift the heat sink off the logic board.
If the heat sink appears to be stuck to the logic board after removing all eight screws, it may be helpful to use a spudger to separate the two components.
When reinstalling your logic board, don't forget to apply a new layer of thermal paste to the face of each processor.

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Step 36
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Release the tabs on each side of the RAM chip by simultaneously pushing each tab away from the chip.
These tabs lock the chip in place and releasing them will cause the chip to "pop" up.
After the RAM chip has popped up, pull it straight out of its socket.
Repeat this process if a second RAM chip is installed.
This guide has been completed 9 times.
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