Introduction

Use this guide to replace the I/O board ribbon cable.

  • 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

Image 1/1: Remove the lower case and set it aside.
  • 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

Image 1/2: 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. Image 2/2: 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.
  • 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

Image 1/1:
  • 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

Image 1/1:
  • Carefully peel the I/O board cable from the top of the fan.

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Image 1/2: 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. Image 2/2: Remove the I/O board cable.
  • 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

Finish Line

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