Введение

Use this guide to replace the fan.

  • Shut down and close your computer. Lay it on a soft surface top-side down.

  • Remove the following ten screws:

    • Two 8 mm 5-point Pentalobe screws

    • Eight 2.5 mm 5-point Pentalobe screws

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

When you say:

Remove the following ten screws:

Two 8 mm 5-point Pentalobe screws

Eight 2.5 mm 5-point Pentalobe screws

Do the 8mm & 2.5mm dimensions refer to the LENGTH of those screws, or the size of the pentalobe? That is, are there other sizes of pentalobe drivers like there are for hex, phillips and torx? When only one dimension is provided, it is usually the socket/driver size, not the screw length, maybe since the length cannot be seen when the screw is installed.

Can I suggest that you clarify your instructions so folks are confident they are only in need of _one_ pentalobe driver?

Nerdily yours,

Larry (whose iPhone 4S can now get through a day without 6 recharges thanks to ifixit.com ;-)

larryleveen - Ответить

The 8mm and 2.5mm are the length of the screws. One pentalobe P5 screwdriver suffices for all the screws (P5 is implicitly the size of the pentalobe screw heads).

Michael Welham -

I sourced all the parts from ifixit, plus a magnetic project mat which I found to be very useful for organising the teardown and reassembly.

Allen - Ответить

The magnetic mat is

GERARD SZAREK -

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.

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  • In this step you will disconnect the battery to help avoid shorting out any components during service.

  • Use the flat end of a spudger to pry both short sides of the battery connector upward to disconnect it from its socket on the logic board.

  • Bend the battery cable slightly away from the logic board so the connector will not accidentally bend back and make contact with its socket.

When reassembling the connector wire needs to be bent to fit.

GERARD SZAREK - Ответить

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

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  • Carefully peel the I/O board cable from the adhesive securing it to 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 flat end of a spudger to pry up on alternating sides of the connector to help "walk" it out of its socket.

  • Remove the I/O board cable.

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  • 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.

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  • 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:

    • One 5.4 mm T5 Torx screw

    • One 3.3 mm T5 Torx screw

    • One 4.6 mm T5 Torx screw with a short head

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  • Lift the fan from the I/O board side and pull it free from the upper case.

  • Removing the fan will also disconnect the fan ribbon cable. Be careful not to snag it.

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Заключение

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

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Sam Lionheart

Участник с: 18.10.2012

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