Upgrade the RAM in your Late 2011 MacBook Pro 13" Unibody.

Image 1/1: Three 14.4 mm Phillips #00 screws
  • Remove the following ten screws:

    • Three 14.4 mm Phillips #00 screws

    • Three 3.5 mm Phillips #00 screws

    • Four 3.5 mm shouldered Phillips #00 screws

Does void the warranty?

jfondeur - Reply

No, it does not void the warranty. More specifically:

oakdragon12 - Reply

How much weight can I save by removing the optical drive?

gunes314 - Reply

You can save a lot of weight if lets say your installing a solid state drive or putting in a second hard drive but if you know that you use the CD/DVD disc drive a lot then you might just want to leave the drive alone.

Marshall WahlstromHelgren -

Also wondering how much weight I'd save by just removing. My drive is broken for ages, but I have not needed it in ages. The HD was already replaced by a cheap SSD (second best thing after upgrading to 8GB), so I'd appreciate losing some weight. I mean, the computer. Although I could lose some too... erm... well, anyway, I guess the lack of the DVD would not interfere with anything, right? Opinions?

Carlos Duarte do Nascimento - Reply

Apple has meticulously balanced the MacBook's weight from left to right, and removing the optical drive may off-balance the Mac.

skimmilk05 -

What so you think that a removing the optical drive which weighs less than a AA battery will unbalance a MBP making it unusable? LOL!

Unless you use the MBP on a high wire (an even then I have my doubts) you'd never notice the weight difference.

pmhparis -

I'm thinking you'd probably be OK losing the DVD drive without a problem. Just make sure the optical drive cable is secured or you might hear it rattling in there from time-to-time.

John Adam Wickliffe - Reply

Hey guys,

this website is amazing. I read it to guide me on fixing my mac book pro, but on the video, the girl gives a wrong information.. She says that is not possible replace just the keyboard... But I managed to replace only my keyboard. It is boring because I have to remove approximately 70 screws but it is possible. Thanks a lot! You guys helped me save about US$300 thats because in Brazil some technicians would charge me with that amount!

I posted some pictures on your facebook page..

renatumb - Reply

Tip: Use one of those weekday pill holders to have a cheep way to store screws you remove and each day of the week can be for different sizes or parts. It has been handy to have (much less expensive than the magnetic mat.

Robert Wacker - Reply

Great tutorial. I found that using a Phillips #0 in lieu of the #00 worked much better.

kschmesk - Reply

I tried the PH #00 for the 10 screws that hold the bottom case and it's too big, instead PH #000 works perfectly. Are you sure this screws are #00?

Alex - Reply

The likely problem with your wifi is not the card but the antenna leads that go into the plastic clutch

. Ifixit don't have a guide to change this as it it includes the isight camera so the screen has to be disassembled which is fairly hard

I got round it by using the camera cable from the old set and cutting off the new one

brian whittle - Reply

Hello MacWorld,

Just want to say that this site is a great resource for repairing or upgrading your Mac. I had a bad SATA cable in my MacBook Pro and after ordering a new one from the "IFIXIT" site I received the cable within two days, replaced it and was up and running again in no time. Thanks IFIXIT for you help!

wer 10/5/15

tayseer999 - Reply

I have found that my MacBook Pro 13 Late 2011 has five shouldered screws and not four. I am not sure exactly where it goes but I have put it in the top left corner of the picture as it is the odd one out.

GotMac - Reply

Hello, where can I buy the screws I need in case I lose one of them?

taylornya - Reply

on my device the #00 screwdriver was a bit too small. a #0 was the perfect one

Maximilian Klotz - Reply

I found with mine that the shouldered and un-shouldered screws were reversed (the three un-shouldered screws going where the orange colour indicates). Also, I found that the front four screws went in at an angle.

gilded yak - Reply

I need to know why my party can't hear. Me on my android phone

Tina Porter - Reply

Because that party is inside your head Tino. Just close your eyes and enjoy the tunes

Snuf Box -

Are you sure the short screws are different? The set sold here just says “Seven 3 mm Phillips #00 screws.”

Jack - Reply

Image 1/2: Remove the lower case. Image 2/2: Remove the lower case.
  • Use your fingers to pry the lower case away from the body of the MacBook near the vent.

  • Remove the lower case.

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Image 1/2: It is useful to pry upward on both short sides of the connector to "walk" it out of its socket. Be careful with the corners of the connectors, they can be easily broken off. Image 2/2: It is useful to pry upward on both short sides of the connector to "walk" it out of its socket. Be careful with the corners of the connectors, they can be easily broken off.
  • Use the edge of a spudger to pry the battery connector upwards from its socket on the logic board.

  • It is useful to pry upward on both short sides of the connector to "walk" it out of its socket. Be careful with the corners of the connectors, they can be easily broken off.

Is this step of removing the battery connector required?

manodh - Reply

yes - as with disassembly of any electronic component you have to remove any power source. You don't want to accidentally turn the Mac on

khull -

This step is not really required. Apple does not recommend it.

Steven Layton - Reply

My Battery does not get recognized after i disconnected it, screw this site!

Diego Hernandes -

Rather than be careful of the corners of the connector i would say don't use the spudger anywhere near the corners. While the corner looks like the obvious place to begin to pry it up from, it will break. Levering from the sides as the instructions suggest works well.

ausmkv - Reply

wonder why apple does not recommend it?!

Peter - Reply

I would recommend it, one careless short and the whole board is dead......

John - Reply

simply remove the battery rather than disconnecting the cable

toiu - Reply

Don't know what the deal is with the battery, but this IS a necessary step to keep from frying the logic Board if you accidentally touch something and short it out. I did this step every time during my troubleshooting and The battery was ALWAYS recognized by the system the next time I turned the MBP on. So be safe and don't fry your logic board in the process...

fasthans - Reply

Prying the battery connector off does not take much force. I did exactly what the guide suggested (walked it off back and forth) with the spudger without any problems. Just be very gentle, much like with anything inside laptops, they are very fragile and need to be worked with carefully. A+ instructions, battery replacement was a success.

aekinaka - Reply

Installed/upgraded 4gb RAM to the system maximum 16gb and installed a 500 gb SSD today....DID NOT disconnect the battery issues at all when I powered back up. Then did a clean install of OSX I used a time machine backup to put all my stuff back on the new HD. From start to finish it took about 4 hours. Macbook boots up right at 16 seconds now.

MacProUser - Reply

Easiest to use two spudgers, one on each short end, I found.

Simon Mundy - Reply

I took off th Airport /Bluetooth connectors but the number J3 connector is broken and so where can i buy J3 connecter for the Airport/bluetooth board

Zeerachen - Reply

Its a lot easier and safer (corner wise) to pry it using the flat side of the black spudger directly in front of the connector (don't go/use the corners) very easily you will be able to pry it further by inserting the spudger into a better and thicker plastic section of the connector

Ed Oliver - Reply

DON'T remove the Battery Cable, you risk the battery NOT being recognised when you start the Mac up again, or breaking it!! More to the point, APPLE DOES NOT RECOMMEND THIS, so don't do it! I Installed 2x 8GB ( 16Gb total) of Crucial Mac RAM at 1333Mhz for my Late 2011 MacBook Pro, and it works beautifully, fully recognised and working well. I followed these instructions, but as Apple didnt recommend disconnecting the battery, I skipped this step, and as well as taking less time, nothing was damaged or broken, and everything works perfectly!!! Just make sure that you DISCHARGE ALL STATIC ELECTRICITY FROM YOUR HANDS, by touching a metal surface in the Mac. Apple recommends the edge of the Optical Disk Drive ( Big silver thing ) before touching any parts. Also, Take care removing the RAM out of its packet, DO NOT touch the Gold connectors, and hold the RAM by the edges. Finally, be PATIENT, GENTLE and it should all go perfectly. I managed it first time, with no technical ability, so follow my advice. Good luck!

Bradley Marks - Reply

Followed the tuto Step by step. Disconnected the battery (quite easily).

No problem when I lit the Mac on again. Battery's here, date's right.

nichoferr - Reply

Image 1/1:
  • Bend the battery cable slightly away from its socket on the logic board so it does not accidentally connect itself while you work.

What are the changes of it broke when i bend it?, after i disconect it does not work anymore

Diego Hernandes - Reply

The guide worked perfectly, as it has in the past (our family has three Mid-2012 Macbook Pros that have been separately upgraded with RAM and SSD).

The PH00 screwdriver fit perfectly.

One note on getting the screws to seat easily and thread perfectly...always turn them gently a couple turns to the left (CCW or Anti-Clockwise) until you hear a small click. That's where the threads will grab. Works with any screw, but when threads are fine, this will help ensure that the screw is at the correct angle and will grab and seat perfectly.

Great guides. Thanks!

timgunkel - Reply

Got RAM in but only one slot is working and now I can't remove! The RAM won't pop up like before and tabs don't seem to do anything. Please advise.

Sal Ergrapes - Reply

Image 1/2: The RAM chip should "pop" up slightly from its socket. Image 2/2: The RAM chip should "pop" up slightly from its socket.
  • Pull the two RAM retaining arms away from the center of the RAM chip.

  • The RAM chip should "pop" up slightly from its socket.

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Image 1/1: Repeat this process to remove the second RAM chip.
  • Pull the RAM stick out of its socket.

  • Repeat this process to remove the second RAM chip.

After replacing the RAM my macbook did not start anymore. Only if I take out one Ram it works. Does anyone knows why.

joelcroese - Reply

Hello Joelcroese, have you a issue about your problem, because i have actually this problem ? ... Thanks for your feed back.

Remy Duprat -

Make sure both your RAM chips are running at the same speed - don't know about the Macbook but it will cause other machines to not recognize the RAM at all or only pick up one stick -

melindaruth -

I am afraid of this too!

ingwis - Reply

Is the channel configuration of your ram sticks correct? Mac needs 9-9-9-24 channel configuration. Something like Corsair Mac Memory or the kit that iFixit provides are in the correct channel configuration.

skimmilk05 - Reply

Just to point out:

1. Do not press again the locker.

2. Changed the bottom RAM first.

3. Put nicely, gently to the slot. Cue for you. You must see the label of the manufacture.

4. Close everything.

5. Switch the Mac and check "Finder>About my Mac" show the correct RAM.

Jay Nandu - Reply


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

114 other people completed this guide.

Phillip Takahashi

Member since: 08/22/2011

59,664 Reputation

101 Guides authored


I should have two 4GB memory or 8GB?

carlosanttini - Reply

You can max out your RAM on any MacBook just about because of the quality of design. I added two sticks of 8 GB of RAM for a total of 16 GB. Apple say my MacBook Pro late 2011 can only support 8GB.

Christopher -


I just changed RAM from 4GB to 16GB in a MacBook Pro 13" Unibody Late 2011. Followed all the steps here, nothing broke. I was very careful on the instruction "the edge of a spudger to pry the battery connector upwards from its socket on the logic board", and also to connect it again.

What happens is that my computer works fine except for the battery. On the upper side (next to clock) says that there are no batteries available. It only works with AC adapter connected.

Please, Help me!!!

isabelortiz - Reply

I just upgraded my macbook pro 13" late 2011 from 4GB to 8GB RAM. It's was very easy to do!

rafsplug - Reply

quite easily done without a spudger. gentle, firm pressure on the sides of the battery plug with fingers, pull up gently, bob's your uncle.

Michael Blackburn - Reply

RAM upgrade was successful....continuing to use my mac book pro with upgraded RAM (8 GB)

kottisasikanth - Reply

Hi, So I my Macbook Pro is indeed 13 inch late 2011. On Apples specs page it says this computer has a base memory of 4 GB and a maximum memory of 8 GB. It also says I have two memory slots.

With these specs in mind, I am looking to purchase RAM to max it out at 8 GB. Do these specs mean I already have a 4 GB RAM drive in one of the two slots? If so should I only buy one 4 GB Ram and leave my old one in? Or would it be better to buy 2, 4 GB chips and take the older RAM chip out? Does that old RAM chip get fried? I'm trying to decide whether or not to purchase 1 or 2 (4 GB) RAM chips.

Thanks to whoever answers this!


Milo Saurman - Reply

Hi Milo, in my experience, when this computer is configured for 4 GB of RAM from Apple, it will have 2 sticks of 2 GB each. To get 8 GB you'll need to replace those with two 4 GB sticks.

But before you buy anything, it's easy enough to check if you have a small Phillips screwdriver! Once you've removed the back panel you should be able to see what you've got. If both slots are occupied, you have 2 x 2GB. If there's an empty slot, then it's a single 4 GB stick.

Andrew Optimus Goldberg -

I've read the comments and haven't seen anything regarding whether 16GB of RAM will work in MacBook Pro 13" Late 2011. Apple's support page for RAM upgrade on this model states that 8GB (2X4GB chips) is the max RAM expectable . Will the 16GB (2X8GB) RAM work?

Sean - Reply

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