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Введение

Use this guide to replace the lower 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

    • Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from to avoid damaging your device.

    For all the screws you use the P5 pentalobe screwdriver?

    Carlos - Ответить

    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 - Ответить

    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 - Ответить

    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 - Ответить

    is P5 supposed to be for all 10 screws? it works on the 2x 2.3mm at the top, but not for the 8x others for me. what size screwdriver for the 3mm? thanks

    monsieurescargot - Ответить

    Yes, the p5 works for all 10 pentalobe screw heads for bottom cover. The the different size mm reference only refers to the difference in length of the screws, but again both heads are p5.

    Antoine Thornton - Ответить

    I followed this exactly and was able to replace my broken trackpad. I did not have to replace the ribbon OR the battery. However I would suggest getting the ribbon since it’s fairly cheap, as for the batteries I was able to do it with a card only. I didn’t use any heat or the liquid but it takes some time. You really have to work the card in there to release the glue. Also you must be very careful not to bend the batteries or damage them, if you do you must replace with new. This took me about 1.5hrs and my computer works like new. Apple cost for this job was around $450, I did it for $120. Big ups to ifixit for this awesome tutorial, tool set and parts!

    On a side note, only use quality tools, the cheap ones will break or strip the screws.

    Dustin Steward - Ответить

    Note that the eight 3mm screws have a shoulder under the head, while the two 2.3mm screws are “full thread”, i.e., there is no shoulder under their heads. It’s important to put the two screws with no shoulder at the hinge of the cover.

    All ten screws require a P5 Pentalobe screwdriver, preferably with a magnetized tip to help hold and position the screw.

    All of the screws have blue “Loctite” thread locker compound on their threads. This is to help prevent the screws from working loose and falling out. Don’t attempt to clean the Loctite from the screws — leave it in place, and it will continue to help prevent the re-inserted screws from working loose.

    When replacing the bottom cover, it is a good technique to insert and BEGIN tightening all ten screws BEFORE fully tightening any one screw. After all the screws have been started, then go around and finish tightening all of them. By doing this, you make it easier to feel that each screw has been started properly, and is not “cross-threaded”.

    doubleclutch - Ответить

    A good technique for starting to thread the screws when replacing them is to position and align the screw, and with the driver, gently turn the screw in the REMOVAL direction until you feel and hear a slight click. This click happens when the leading thread of the screw drops off of the leading edge of the thread in the hole — this is the point at which the threads are properly positioned for engagement. You can now turn the driver and screw in the TIGHTENING direction. This technique will help prevent accidental “cross-threading” of the screw, which will damage the threads permanently.

    Note that this is a useful technique when installing ANY threaded fastener.

    doubleclutch - Ответить

  1. 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.

    This takes a bit more effort than you might expect. Put your fingers where shown and lift about 3inches. With enough upwards pressure the plastic holders will “pop free” and the bottom will come off easily.

    hamiltont - Ответить

  2. 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 - Ответить

    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 - Ответить

    What is the black vinyl-y sticker on the inside of the case (some sort of shield?). I was forced to slightly puncture it in order to replace the feet on my laptop. Thanks in advance.

    Tommy Huang - Ответить

    When I got the back off, I found this piece loose, any idea what it is? about 9mm long frosted plastic

    https://imgur.com/a/tYaxGdG

    Fred Anderson - Ответить

    This wording I found quite confusing. They just mean when putting the lid back on that you just removed in the previous step, push here.

    Mmm ttt - Ответить

Заключение

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

15 участников успешно повторили данное руководство.

Sam Goldheart

Участник с: 18.10.2012

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Один комментарий

Do i have to hear some "click" noise when reconnecting the plastic clips? I did gently push the middle of the lower case, but the clips did not reconnected (it was still easy to remove the lower case). Hence i just put screws back, and then little bit strongly push the lower case again, but there was no "click" noise eithe ... However, the bottom case is completely flat, so i suppose it is ok...

K4stan - Ответить

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