MacBook Unibody Model A1278 Mid Wall Replacement

Scritto Da: Walter Galan

Commenti: 12

MacBook Unibody Model A1278 Mid Wall Replacement

Difficoltà

Easy

Passi

Tempo Necessario

Nessuna stima

Introduzione

This guide will show you how to replace the Mid Wall on from your laptop.

Strumenti

Phillips #00 Screwdriver

Ricambi

MacBook Unibody (A1278) Mid Wall

Passo 1

With the case closed, place the Unibody top-side down on a flat surface.
Depress the grooved side of the access door release latch enough to grab the free end. Lift the release latch until it is vertical.

This is not a a1278 unibody MacBook Pro. A1278 MacBooks backs are one solid metal piece not two separate pieces. This guide is for a different MacBook Pro.

Brad Burgeson - 25/10/18

This guide isn’t for a pro; it’s a MacBook unibody.

Nicholas - 19/09/19

So, it turns out that Apple used the model code A1278 for quite a few different Mac models, including both Pro and non-Pro versions! This guide is for the non-Pro Macbooks. There’s also one for the Pro models with the same A1278 identifier.

tempelmann - 11/11/20

Passo 2

The access door should now be raised enough to lift it up and out of the Unibody.

Passo 3

Be sure the access door release latch is vertical before proceeding.
Grab the white plastic tab and pull the battery up and out of the Unibody.

Great tutorial ! great step !

Leo Etcheverry - 12/07/15

Even though it’s specifically stated, you have to make sure the access door latch is vertical or the battery won’t be removable.

Henry Kim - 11/01/19

Passo 4

Remove the following eight screws securing the lower case to the chassis:
One 3 mm Phillips screw.
Three 13.5 mm Phillips screws.
Four 3.5 mm Phillips screws.

On my model, it seemed the top-left was 3.5mm and the bottom 4 were 3 mm.

Jim -

Make sure you have a good quality Phillips screwdriver. Mine had removable tips and had a small play at the connection. As a result I didn't have a good feel and damaged my screws (those securing the fan and the top left in step 23). Game over for me installing new thermal paste...

Be very carefull with your screws! Especially those on the inside.

Nickolas Michelinakis - 08/05/16

You can get away with a Phillips #00 for many of the screws involved but the 4 at the bottom case split are likely to strip if you don’t use a JIS #00 or, in a pinch, a Phillips #000.

Bill Cole - 25/09/17

I used the Phillips #00 tip from my Pro Tech Toolkit, and it worked well enough. But yes, maybe #000 might have been better on the lower row of screws. Note to myself: Always read the comments first.

Les Kitchen -

When replacing these screws, the order to replace them in is as follows:

1, Top left

2. Top right

3. Top center-left

4. Top center-right

5. Bottom center-right

6. Bottom center-left

7. Bottom right

8. Bottom left

I hope this information is helpful.

facebook - 20/08/19

I followed my usual process of putting in all the screws loosely, then tightening them gradually in distributed pattern, to help ensure that the panel settles in place evenly. But maybe some orders are better.

Les Kitchen -

Passo 5

Using both hands, lift and remove the lower case off the upper case.

Thanks for the guide!

It's implicit in the two photos, but worth mentioning because it blocked my progress in this step for a bit: You have to put the release latch back into its horizontal, closed position before you can lift off the lower-case panel.

Les Kitchen -