Introduction

Use this guide to replace a faulty logic board.

Don't forget to follow our thermal paste application guide before you reinstall your heat sink.

Remove the following ten screws securing the lower case to the upper case:
  • Remove the following ten screws securing the lower case to the upper case:

    • Two 2.3 mm Pentalobe screws

    • Eight 3.0 mm Pentalobe screws

For all the screws you use the P5 pentalobe screwdriver?

Carlos - Reply

Pentalobe is only for the screws on the bottom cover. The Torx screw driver is for the remainder.

Fredrik -

Is the Pentalobe screwdriver mentioned in the tools list? I did not have one so I used a filed down flat blade screwdriver. Not a fantastic idea, but it works.

Alex Birkett - Reply

Yes, it's mentioned on the top of this page. P5 Pentalobe to be precise. I didn't have one either, so I bought one from iFixit and that works fantastic. An absolutely precise fit, which is important especially when you might open your MacBook a couple of times during the years you own it. Not using the correct tool might do more harm to the screws than you want! I once had this with a Lenovo Yoga 3 Pro, which has Torx screws (T4 I think) and I used cheap Chinese quality tools, with the result that both the tool and one of the screws are damaged.

addvariety -

the macbook in the picture is 2012. does it has the same structure as 2013?

Edison - Reply

I never, ever, ever considered using anything but the correct tool on the Pentalobe screws. Too easy to strip and void your warranty (if still in effect), as well as make it almost impossible to get inside later for another upgrade or repair. The Wiha P5 Pentalobe screwdriver fits like a glove and costs only about $11 (a fraction of your drive's price)at Amazon.com. Get it!

marketing - Reply

Wedge your fingers between the upper case and the lower case.
  • Wedge your fingers between the upper case and the lower case.

  • Gently pull the lower case away from the upper case to remove it.

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The lower case is connected to the upper case with two plastic clips near its center. During reassembly, gently push down the center of the lower case to reattach the two plastic clips.
  • The lower case is connected to the upper case with two plastic clips near its center.

  • During reassembly, gently push down the center of the lower case to reattach the two plastic clips.

There are two screws that are shorter-they go to the back near the vent.

wrbandllm - Reply

This was already mentioned at the start, it says 2x 2.3mm screws and those are coloured red instead of orange for the other ones in iFixit's image.

addvariety - Reply

If necessary, remove the plastic cover adhered to the battery contact board.
  • If necessary, remove the plastic cover adhered to the battery contact board.

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Use the flat end of a spudger to lift the battery connector straight up out of its socket on the logic board. Be sure you lift up only on the connector itself, not the socket, or you risk permanent damage to the logic board.
  • Use the flat end of a spudger to lift the battery connector straight up out of its socket on the logic board.

  • Be sure you lift up only on the connector itself, not the socket, or you risk permanent damage to the logic board.

I have a friends MacBook Pro that has some water damage that caused the MacBook not to be able to use battery power, but still work when plugged into A/C. Upon further inspection I can see visible corrosion on a few of the 9 cables going from the battery connector to that small circuit board. Is it possible to just replace that circuit board?

jramsey21 - Reply

I have the some problem. I was thinking to replace the whole battery but I am not it will solve the problem. Any suggestions?

salvatorebarbera -

Sometimes it can be enough to just clean the contacts without having to replace the entire board. Dosent work for complicated IC's like plcc type, where corrosion is underneath the chip. Here you will have to reheat and reapply the IC.

andrehedegaard -

Have either of you replaced the battery and/or circuit board to fix the MacBooks with the water damage ? I have the same problem with the MacBook working fine when connected to power but dying immediately when the power cord is removed.

Steve - Reply

Hi, Steve. I had the same problem: Macbook Pro 15 retina with coffee damage. And it worked fine when connected to power. I made it working after replacing the whole battery. It seems that circuit connected to the battery becomes disabled to prevent short circuit.

Vadim Gribanov -

When placing the battery connector back into the socket on the logic board, check that every part of connector is pressed down. You should hear a soft click when it's back in place.

Ethan Tarquin - Reply

If I only want to replace the trackpad cable, then which steps should I skip? This step seems unnecessary

Parth Gudhka - Reply

Bend the battery connector up out of the way to prevent accidental contact with its socket during your repair.
  • Bend the battery connector up out of the way to prevent accidental contact with its socket during your repair.

If you miss or let this step for later like I did, the power left in the battery even though the computer is completely shut down, will screw up the I/O board cable like I did. I noticed this after I put all the pieces back, turn the computer on and surprise, no wifi hardware is detected. -.-

sebasgaes - Reply

I put a small piece of blue painters tape on the battery connector contacts to prevent it from accidentally making a connection and shorting. This helped keep things a bit more protected.

LaymanLab - Reply

That’s a great idea!

David Lilliebridge - Reply

Carefully remove the rubber fan bumper from the edge of the heat sink. The fan bumper wraps around the heat sink and fits into slots in the fan duct. During reassembly, be sure to fit the tabs into the notches in the fan duct. The fan bumper wraps around the heat sink and fits into slots in the fan duct. During reassembly, be sure to fit the tabs into the notches in the fan duct.
  • Carefully remove the rubber fan bumper from the edge of the heat sink.

  • The fan bumper wraps around the heat sink and fits into slots in the fan duct. During reassembly, be sure to fit the tabs into the notches in the fan duct.

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Use the flat end of a spudger to peel the four foam stickers off of the heat sink screws. Use the flat end of a spudger to peel the four foam stickers off of the heat sink screws.
  • Use the flat end of a spudger to peel the four foam stickers off of the heat sink screws.

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Remove the following screws securing the heat sink to the logic board:
  • Remove the following screws securing the heat sink to the logic board:

    • Four 2.6 mm T5 screws

    • One 2.4 mm Phillips #000 screw

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Remove the heat sink from the laptop. When reassembling your computer, follow our thermal paste application guide to reapply the thermal paste.

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Use the tip of a spudger to push on either side of the the iSight camera cable connector to walk it out of its socket on the logic board. Use the tip of a spudger to push on either side of the the iSight camera cable connector to walk it out of its socket on the logic board.
  • Use the tip of a spudger to push on either side of the the iSight camera cable connector to walk it out of its socket on the logic board.

I found this to be the most difficult step. There is a need to get positioned so that you have the leverage to push hard enough at exactly the point shown in the photo without risking slipping and perhaps damaging the CPU nearby

Tony M - Reply

Peel the iSight camera cable off the fan housing to fold it out of the way. Peel the iSight camera cable off the fan housing to fold it out of the way.
  • Peel the iSight camera cable off the fan housing to fold it out of the way.

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Black Friday
Broken doesn't stand a chance.
Use the tip of a spudger to flip the tab on the fan's ZIF connector. Carefully pull the fan cable straight out of its socket. Carefully pull the fan cable straight out of its socket.
  • Use the tip of a spudger to flip the tab on the fan's ZIF connector.

  • Carefully pull the fan cable straight out of its socket.

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Remove the following screws securing the fan to the upper case:
  • Remove the following screws securing the fan to the upper case:

    • One 5.0 mm T5 Torx screw

    • Two 3.6 mm T5 Torx screws

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Lift the end of the fan closest to the display hinge and remove the fan from the upper case. Lift the end of the fan closest to the display hinge and remove the fan from the upper case. Lift the end of the fan closest to the display hinge and remove the fan from the upper case.
  • Lift the end of the fan closest to the display hinge and remove the fan from the upper case.

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Remove the two 2.1 mm T5 Torx screws securing the I/O board cable bracket to the logic board. Remove the I/O board cable bracket.
  • Remove the two 2.1 mm T5 Torx screws securing the I/O board cable bracket to the logic board.

  • Remove the I/O board cable bracket.

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Use the flat end of a spudger to pop the I/O board connector straight up off its socket on the logic board. Be careful to only pry up on the I/O board cable, not on the socket itself or you risk damaging your logic board.
  • Use the flat end of a spudger to pop the I/O board connector straight up off its socket on the logic board.

  • Be careful to only pry up on the I/O board cable, not on the socket itself or you risk damaging your logic board.

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Lift the logic board end of the I/O board cable straight up to bend it out of the way. To avoid damage to the cable, fold only at the bend in the I/O board end of the cable.
  • Lift the logic board end of the I/O board cable straight up to bend it out of the way.

  • To avoid damage to the cable, fold only at the bend in the I/O board end of the cable.

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Use the tip of a spudger to lift the right speaker connector straight up out of its socket on the logic board. Use the tip of a spudger to lift the right speaker connector straight up out of its socket on the logic board.
  • Use the tip of a spudger to lift the right speaker connector straight up out of its socket on the logic board.

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With the tip of a spudger, push on either side of the I/O board connector to walk it out of its socket on the logic board. With the tip of a spudger, push on either side of the I/O board connector to walk it out of its socket on the logic board.
  • With the tip of a spudger, push on either side of the I/O board connector to walk it out of its socket on the logic board.

Having a hard time at this step. Any suggestions? it's just not walking out.

Moki - Reply

Use the flat end of a spudger to disconnect the keyboard backlight cable and bend it up out of the way of the logic board. Use the flat end of a spudger to disconnect the keyboard backlight cable and bend it up out of the way of the logic board. Use the flat end of a spudger to disconnect the keyboard backlight cable and bend it up out of the way of the logic board.
  • Use the flat end of a spudger to disconnect the keyboard backlight cable and bend it up out of the way of the logic board.

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Grab the black plastic tab to flip the display cable connector open and pull it straight out of its socket on the logic board. Grab the black plastic tab to flip the display cable connector open and pull it straight out of its socket on the logic board. Grab the black plastic tab to flip the display cable connector open and pull it straight out of its socket on the logic board.
  • Grab the black plastic tab to flip the display cable connector open and pull it straight out of its socket on the logic board.

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Carefully pull the DC-In board connector straight out of its socket on the logic board. Carefully pull the DC-In board connector straight out of its socket on the logic board.
  • Carefully pull the DC-In board connector straight out of its socket on the logic board.

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Wedge the flat end of a spudger under the left speaker cable near the connector and lift it straight up out of its socket and fold it out of the way. Wedge the flat end of a spudger under the left speaker cable near the connector and lift it straight up out of its socket and fold it out of the way. Wedge the flat end of a spudger under the left speaker cable near the connector and lift it straight up out of its socket and fold it out of the way.
  • Wedge the flat end of a spudger under the left speaker cable near the connector and lift it straight up out of its socket and fold it out of the way.

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If necessary, peel back any tape covering the microphone cable ZIF connector. If necessary, peel back any tape covering the microphone cable ZIF connector.
  • If necessary, peel back any tape covering the microphone cable ZIF connector.

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Use the tip of a spudger to flip the retaining tab on the microphone cable ZIF connector. Pull the microphone cable out of its socket on the logic board. Pull the microphone cable out of its socket on the logic board.
  • Use the tip of a spudger to flip the retaining tab on the microphone cable ZIF connector.

  • Pull the microphone cable out of its socket on the logic board.

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If necessary, peel back any tape covering the keyboard cable connector. Use the tip of a spudger to flip the retaining tab on the ZIF connector. Use the tip of a spudger to flip the retaining tab on the ZIF connector.
  • If necessary, peel back any tape covering the keyboard cable connector.

  • Use the tip of a spudger to flip the retaining tab on the ZIF connector.

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Pull the keyboard cable straight out of its ZIF socket on the logic board. Pull the keyboard cable straight out of its ZIF socket on the logic board.
  • Pull the keyboard cable straight out of its ZIF socket on the logic board.

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If necessary, peel back any tape covering the trackpad cable connector. Use the tip of a spudger to flip the retaining tab on the ZIF connector. Use the tip of a spudger to flip the retaining tab on the ZIF connector.
  • If necessary, peel back any tape covering the trackpad cable connector.

  • Use the tip of a spudger to flip the retaining tab on the ZIF connector.

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Pull the trackpad ribbon cable straight out of its socket on the logic board. Pull the trackpad ribbon cable straight out of its socket on the logic board.
  • Pull the trackpad ribbon cable straight out of its socket on the logic board.

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Remove the five 3.5 mm T5 Torx screws securing the logic board to the upper case.
  • Remove the five 3.5 mm T5 Torx screws securing the logic board to the upper case.

  • When reassembling, install all five screws loosely, position the logic board, and then tighten evenly.

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Lift the processor end of the logic board up slightly and pull it toward the fan recess to free the ports from the edge of the upper case. Remove the logic board. When reinstalling, make sure the keyboard, keyboard backlight, MagSafe, and microphone cables don't get trapped beneath the logic board.
  • Lift the processor end of the logic board up slightly and pull it toward the fan recess to free the ports from the edge of the upper case.

  • Remove the logic board.

  • When reinstalling, make sure the keyboard, keyboard backlight, MagSafe, and microphone cables don't get trapped beneath the logic board.

  • Also be sure to slide the ports' metal EMI fingers under the side of the case, not over.

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Remove the single 2.9 mm T5 Torx screw securing the SSD to the logic board.
  • Remove the single 2.9 mm T5 Torx screw securing the SSD to the logic board.

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Lift the free end of the SSD up slightly and pull it straight out of its socket on the logic board. Lift the free end of the SSD up slightly and pull it straight out of its socket on the logic board. Lift the free end of the SSD up slightly and pull it straight out of its socket on the logic board.
  • Lift the free end of the SSD up slightly and pull it straight out of its socket on the logic board.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

15 other people completed this guide.

Sam Lionheart

Member since: 10/18/2012

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3 Comments

Hi @sam !

I have a macbook pro 13" retina i5 2.6 8gb mid 2014 Model. A1502 and it has the damaged board.

In SAT, I changed it for 600 euros to replace it.

I have found a logicboard used for this same model A1502 (i7 3.0 Ghz 8Gb Ram) for half price and I would like to know if it is possible to replace it for this, or the mac will give me some problem when plugging a logicboard with different characteristics that the original?

Thanks for you support !

neotic82 - Reply

Question: Can I put a 2014 logic board in a 2015 model? I have a water damaged MF839LL/a 2015 model, but I can get a MGX72LL/a 2014 model logic board for cheap. Thanks!

Danny M - Reply

Sam, thank you so much! Repair guide worked perfectly for removing logic board to clean corrosion after a water spill on the keyboard! Everything was exactly as picture and explained. I have two questions I was hoping Sam or someone else knowledgeable could answer.

1. Can/ should I replace the foam stickers from the heat sink screws (step 8)? If so, what kind of computer safe adhesive should I use to ensure that they stay in place?

2. Should the plastic cover adhered to the battery contact board in step 4 be replaced?

Andrew Lingousky - Reply

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