Introduction

Use this guide to replace your Air's I/O board which houses the MagSafe DC-in port, a USB socket, and the headphone jack.

  • Before proceeding, power down your machine. Close the display and lay it on a soft surface top-side down.

  • Remove the following ten screws:

    • Two 9 mm P5 Pentalobe screws

    • Eight 2.6 mm P5 Pentalobe screws

  • The special screwdriver needed to remove the ten 5-point Pentalobe screws can be found here.

These pentalobe screw sizes can't possibly be right - not even close. Should they perhaps be 0,8 mm and 1,2 mm?

Rulle Boer - Reply

The screw sizes refer to the length of the shaft, not the diameter of the head or socket. P5 is the standard pentalobe size for all these screws, regardless of length.

I agree that the notation is a little confusing. I think it's because, with standard sized hardware like for your house, you have shaft diameter (say 1/8" or 3mm) and shaft length (say 3" or 7.5cm). So we're programmed to think of small numbers like that as diameter. But in this case, they're length.

budpegasus - Reply

Pulling the fan cable out was terrifying but you actually just pull on the cable itself. No way to get any leverage at the connector to dislodge it. Did come out easily but like I said, scared me!

allison - Reply

Draai de schroefjes voorzichtig los en leg ze op een stabiele plek neer en let erop dat de schroefje een verschillende lengte hebben.

bwgvanderveer - Reply

I thought I could replace my 256 Gb SSD with 512? regards

ola m - Reply

Do you have good Test Point Voltages? It appears there are silver colored Test points on the I/O Board. I am working on a water spill and trying to troubleshoot if both the I/O board and the Logic need replaced.

andrew - Reply

It's probably not necessary but may be a little safer to completely discharge the old battery before replacing it.

Larry Smith - Reply

tell a model that was not inferior to the speed of the one in the laptop.

Thank you

ilyabuhov - Reply

Do i need to order tools separately to replace the battery i just ordered?

anne uhlir - Reply

Wedge your fingers between the display and the lower case and pull upward to pop the lower case off the Air.
  • Wedge your fingers between the display and the lower case and pull upward to pop the lower case off the Air.

  • Remove the lower case and set it aside.

There is a nub on the inside of the case which is attached to the battery. When you try to pull it open, it appears to be attached to the plastic casing of the battery, which sometimes splits. I gently unhooked the nub from the battery before removing the case fully. This seems to happen if the battery has suffered some drop damage (plastic parts broken around screws and parts of plastic frame split). Just an FYI in case your lower case doesn't pull away easily.

Jeannie Crowley - Reply

As a precaution against accidental discharge or shock, disconnect the battery connector from the logic board. Grab the clear plastic pull tab attached to the battery connector and pull it toward the front edge of the Air to disconnect the battery from the logic board.
  • As a precaution against accidental discharge or shock, disconnect the battery connector from the logic board.

  • Grab the clear plastic pull tab attached to the battery connector and pull it toward the front edge of the Air to disconnect the battery from the logic board.

  • Be sure to pull the connector horizontally toward the battery, and not straight up from the Air, or you may damage the socket on the logic board.

The clear plastic tab is missing on mine. Whoever worked on my laptop before me seems to have ripped it off. Now what?

mjmorawski - Reply

Use the flat end of a spudger to pry the I/O board cable connector upward out of its socket on the I/O board.
  • Use the flat end of a spudger to pry the I/O board cable connector upward out of its socket on the I/O board.

Be really careful when reconnecting the I/O board cable connector. The deep connector has a tendency to bend the pins with very little force applied. If this is the case, check to see if the gold pins are bent down, you may only see one row of gold pins vertically, or none.

They can be lifted with a flat head screwdriver bit. Gently slide the bit under the pins, this may need a small amount of pressure depending on how far they are bent down. Lever the pins back to the vertical position.

I found attempting to insert this connector was easier while holding the MacBook on a slight angle to see down the pins as I aligned the connector.

Another way to tell if the I/O connector cable is in place correctly is to run an Apple Hardware Test. Hold down the letter D while booting the mac and follow the prompts. If no issues found, you're all good.

A common error for a misconnected I/O Connector is 4SNS/1/C0000008:TS0P--124. This means the system cannot read the palm temperature sensor. Fix the cable and you're good

Ben - Reply

Carefully peel the I/O board cable from the top of the fan.
  • Carefully peel the I/O board cable from the top of the fan.

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The following connector has an especially deep socket. Use care when disconnecting it. While gently pulling the I/O board cable upward near its connection to the logic board, use the tip of a spudger to pry upward on alternating sides of the connector to help "walk" it out of its socket.
  • The following connector has an especially deep socket. Use care when disconnecting it.

  • While gently pulling the I/O board cable upward near its connection to the logic board, use the tip of a spudger to pry upward on alternating sides of the connector to help "walk" it out of its socket.

  • Remove the I/O board cable.

This step can be skipped, not required for removing the fan.

yurkennis - Reply

Agreed, there is no need to remove this cable.

David Robillard - Reply

Use the tip of a spudger to carefully flip up the retaining flap on the fan cable ZIF socket.
  • Use the tip of a spudger to carefully flip up the retaining flap on the fan cable ZIF socket.

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

It is not necessary to remove the fan cable.

ezequielaceto - Reply

It's certainly necessary to remove the fan cable, as you won't be able to remove the fan in Step 10 if you don't!

Goth70 Fuzed - Reply

If you break the ZIF socket, it could be a bad day.... It happened to me. Not one to throw in the towel, I fashioned a hold-down with a length of paperclip held in place by the nearby screw. So far, it is working like a charm. Hopefully, it continues to work and this helps some other poor soul.

Lester Newsom - Reply

I also haven't removed the fan cable. No need for this step IMHO. Just let the fan on the side instead of completely remove it.

David Robillard - Reply

Peel the rubber gasket off the adhesive on the top of the fan.
  • Peel the rubber gasket off the adhesive on the top of the fan.

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

    • One 3.6 mm T5 Torx screw

    • One 2.7 mm T5 Torx screw

    • One 3.6 mm T5 Torx screw with a short head

Lift the fan out of the upper case and carefully pull the fan ribbon cable out of its socket as you remove it from the Air.
  • Lift the fan out of the upper case and carefully pull the fan ribbon cable out of its socket as you remove it from the Air.

Would like more detail about removing the fan cable. Looks like it just pulls out to the right. I thought I ripped it off.

kennyavis81 - Reply

On re-installation of fan cable cable no tool required - just wiggle it in from from side/above (side force aided by bend of cable)

Super easy - my first computer repair..hope all is well

paul deacon - Reply

The ribbon connector held in the socket by a tiny square on top, which enters a square hole in the top of the socket. An xacto blade used to pry the top of the connector gently up will help release the connector.

peteragries - Reply

This helped me no end, I agree with the people above that it's worth explaining how the ribbon cable is held in and that

it's simple to remove and reinstall. Thank you for a brilliant guide.

leesparey - Reply

Year, from the top, the ribbon appears to be just the plastic strip. Copper connectors are on the bottom but at first glance it looks like I pulled the connector off the ribbon. Mine pulled straight out away from the connector, no upward angle needed or desired.

Allen - Reply

Disconnect the I/O board by pulling the power cable away from its socket on the logic board.
  • Disconnect the I/O board by pulling the power cable away from its socket on the logic board.

  • Pull the cable parallel to the face of the logic board toward the right edge of the Air.

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Pull the camera cable parallel to the face of the I/O board toward the hinge of the Air to disconnect it from its socket, using the tip of a spudger to help push the connector out of its socket.
  • Pull the camera cable parallel to the face of the I/O board toward the hinge of the Air to disconnect it from its socket, using the tip of a spudger to help push the connector out of its socket.

  • Do not lift upward on this cable as you disconnect it, as its socket may break off the logic board.

Do you have to replace the IO board and the Logic Board together? Are they matched in some way, or can I just leave the IO board in place, or put back in the original when swapping the Logic Board?

John Howell - Reply

Use the corner of the flat edge of a spudger to push alternately on the metal ears to help disconnect the cable.

peteragries - Reply

And when reinstalling, push the metal ears from behind to snap the connector back into the socket

peteragries - Reply

Use the flat end of a spudger to pry the left speaker cable connector up and out of its socket on the I/O board.
  • Use the flat end of a spudger to pry the left speaker cable connector up and out of its socket on the I/O board.

  • Pry up from beneath the wires.

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Use the tip of a spudger to flip up the retaining flap securing the microphone ribbon cable to the I/O board. Use the tip of a spudger to remove the volume button ribbon cable from its ZIF connector on the I/O board.
  • Use the tip of a spudger to flip up the retaining flap securing the microphone ribbon cable to the I/O board.

  • Use the tip of a spudger to remove the volume button ribbon cable from its ZIF connector on the I/O board.

This is throwing me for a loop. It won't fit back in. Are the volume and mic cable the same cable?

david nieto - Reply

Use the tip of the spudger on the plastic ear at the back of the connector (the ear is on the battery side), to push the connector out of the socket.

peteragries - Reply

Remove the single 4.0 mm T5 Torx screw securing the I/O board to the upper case.
  • Remove the single 4.0 mm T5 Torx screw securing the I/O board to the upper case.

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Carefully lift the I/O board from its edge nearest the logic board and remove it from the upper case.
  • Carefully lift the I/O board from its edge nearest the logic board and remove it from the upper case.

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Conclusion

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

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Andrew Optimus Goldberg

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2 Comments

Where can I buy the 2012 I/O board?

Andrew - Reply

I bought a used I/O board on ebay for $30. Replacing the i/o board solved my problem with the "fan stack" heat sensor which had been unreadable and causing the computer to run very slowly and the fan to run full speed. It was listed like this:

2012 13" MacBook Air MagSafe II DC audio I/O Power Board A1466

fornext - Reply

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