Introdução

Use this guide to replace the I/O board.

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 P5 Pentalobe screws

    • Eight 3.0 mm P5 Pentalobe screws

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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.

  • Remove the lower case and set it aside.

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

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

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Remove the plastic cover adhered to the battery contact board.
  • Remove the plastic cover adhered to the battery contact board.

This plastic cover wasn’t included with the new battery so I placed the original one back in. Was it supposed to go back in? This detail wasn’t clear since the original cover didn’t fit exactly over the newer battery connector. Plus any stickiness of adhesive that may have been there was gone.

arnolfo santoro - Responder

Remove the following screws securing the battery connector board to the logic board:
  • Remove the following screws securing the battery connector board to the logic board:

    • Two 2.8 mm T6 Torx screws

    • One 7.0 mm T6 Torx shouldered screw

Top screw in this image was not a T6. I found that a T5 bit fit this one.

Alex Grayson - Responder

Use tweezers to remove the small plastic cover located near the bottom right of the battery connector board. Use tweezers to remove the small plastic cover located near the bottom right of the battery connector board.
  • Use tweezers to remove the small plastic cover located near the bottom right of the battery connector board.

Is adhered to screw beneath, so lift firmly and slowly.

Andrew - Responder

Remove the wide head 6.4 mm T6 Torx screw securing the battery connector to the logic board assembly.
  • Remove the wide head 6.4 mm T6 Torx screw securing the battery connector to the logic board assembly.

I lost this screw! How important is it? Will it be okay with just the 3 previously removed screws?

Gerardo Jimenez - Responder

Carefully lift the battery connector board up off the logic board. It is recommended to bend the battery cables just slightly, to keep the board suspended up above the logic board and out of the way.
  • Carefully lift the battery connector board up off the logic board.

  • It is recommended to bend the battery cables just slightly, to keep the board suspended up above the logic board and out of the way.

  • Do not fold the board completely over, or crease the cables, as this may damage the battery.

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Grasp the Interposer with tweezers. An interposer is the name for an interface that links one electrical connection to another. In this repair, it is the board connecting the battery to logic board.
  • Grasp the Interposer with tweezers.

    • An interposer is the name for an interface that links one electrical connection to another. In this repair, it is the board connecting the battery to logic board.

  • Lift the Interposer off the logic board and remove it.

    • Removing this board will ensure that the battery remains disconnected throughout your repair, preventing your computer from accidentally powering on. It's also a good idea to take it out so it doesn't fall out unexpectedly.

WHy to remove battery contact board? Replace can happen without it also, right.

Behram Beldagli - Responder

when reinstalling the interposer - pay close attention to proper orientation. You can install it upside down and still make it fit - don't ask me how I know!

davemullins - Responder

How can I remove interposer I m not able to remove it

Raunak - Responder

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

    • One 2.4 mm Phillips #00 screw

    • One 3.4 mm T5 Torx screw

    • Four 2.7 mm T5 Torx screws

Hi,

found 4 rubber spacers on the 4 2,5mm screws

ddagonetroppo - Responder

Also found the rubber caps on the 4x2.7mm - didn't bother to replace the caps and didn't have any problems with them.

Rand Bell - Responder

  • Lift and remove the heat sink up off the logic board assembly.

  • When reinstalling the heat sink, be sure to apply a new layer of thermal paste. If you have never applied thermal paste before, we have a guide that makes it easy.

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Use the flat end of a spudger to pry the right side of the I/O board data cable connector up off its socket on the I/O board. When prying the I/O board data cable connector from its socket, make sure to pry the connector itself and not the socket. Prying the socket may cause irreversible damage to the I/O board.
  • Use the flat end of a spudger to pry the right side of the I/O board data cable connector up off its socket on the I/O board.

  • When prying the I/O board data cable connector from its socket, make sure to pry the connector itself and not the socket. Prying the socket may cause irreversible damage to the I/O board.

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Wedge the flat end of a spudger beneath the left side of the I/O board data cable connector. Gently twist the spudger to disconnect the I/O board data cable connector from its socket on the logic board.
  • Wedge the flat end of a spudger beneath the left side of the I/O board data cable connector.

  • Gently twist the spudger to disconnect the I/O board data cable connector from its socket on the logic board.

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Lift and remove the I/O board data cable from the MacBook Pro.
  • Lift and remove the I/O board data cable from the MacBook Pro.

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Use the tip of a spudger to flip up the retaining flap on the right fan ribbon cable ZIF socket. Be sure you are prying up on the hinged retaining flap, not the socket itself. Pull the right fan ribbon cable straight out of its socket on the logic board.
  • Use the tip of a spudger to flip up the retaining flap on the right fan ribbon cable ZIF socket.

  • Be sure you are prying up on the hinged retaining flap, not the socket itself.

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

Hey! You skipped a step!

What about the cable (don't know what it does) that runs right across the fan, interfering with pulling the fan out.

It's still in place in Step 14, but here in Step 15 it's magically removed itself, and can be seen resting luxuriously on top of the Airport card.

How do we get that outta there?

Victor Gavenda - Responder

Remove the three 3.1 mm T5 Torx screws securing the right fan to the logic board assembly.
  • Remove the three 3.1 mm T5 Torx screws securing the right fan to the logic board assembly.

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Lift and remove the right fan out of the upper case.
  • Lift and remove the right fan out of the upper case.

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Remove the single 2.7 mm T5 Torx screw securing the AirPort board to the I/O board.
  • Remove the single 2.7 mm T5 Torx screw securing the AirPort board to the I/O board.

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Use the flat end of a spudger to pry and disconnect the three antenna cable connectors from the AirPort board. The three cables are coded with black sleeves of different lengths. During reassembly: Connect the long-sleeved cable to the center socket.
  • Use the flat end of a spudger to pry and disconnect the three antenna cable connectors from the AirPort board.

  • The three cables are coded with black sleeves of different lengths. During reassembly:

    • Connect the long-sleeved cable to the center socket.

    • The short-sleeved cable connects next to the screw.

    • The remaining cable has no sleeve, and connects in the last empty socket, next to the fan.

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Move the antenna cables aside, clear of the AirPort board. Move the antenna cables aside, clear of the AirPort board.
  • Move the antenna cables aside, clear of the AirPort board.

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Pull the AirPort board straight out of its socket on the I/O board. Pull the AirPort board straight out of its socket on the I/O board.
  • Pull the AirPort board straight out of its socket on the I/O board.

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Use the tip of a spudger to push the edges of the I/O board power connector straight out of its socket on the logic board. It is recommended to carefully push on both sides of the connector to "walk" it out of its socket.
  • Use the tip of a spudger to push the edges of the I/O board power connector straight out of its socket on the logic board.

  • It is recommended to carefully push on both sides of the connector to "walk" it out of its socket.

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Pull the I/O board connector straight out of its socket on the logic board.
  • Pull the I/O board connector straight out of its socket on the logic board.

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Remove the following two screws securing the I/O board to the upper case:
  • Remove the following two screws securing the I/O board to the upper case:

    • One 3.5 mm T5 Torx screw

    • One 4.9 mm T8 Torx screw

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Carefully pull and remove the I/O board away from its recess in the upper case. Carefully pull and remove the I/O board away from its recess in the upper case.
  • Carefully pull and remove the I/O board away from its recess in the upper case.

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Conclusão

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

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