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简介

这是MacBook Pro上每次维修的起点。你需要一把P5 五角螺丝刀拆下底壳并进入设备。

'''为了你的安全,请在开始此程序之前将MacBook Pro的电池放电。如果不小心刺破,充电的锂离子电池会产生危险且无法控制的火灾。

  1. 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 禁用自动重启: 步骤 1 中的图像 1,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 禁用自动重启: 步骤 1 中的图像 2,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 禁用自动重启: 步骤 1 中的图像 3,3
    • 在开始此步骤之前,你必须禁用 Mac 的自动重启功能。自动重启功能会让 MacBook 在掀开盖子时自动开机。这个功能在拆卸过程中也可能会被意外触发。使用本指南或按照下面的简要说明来禁用自动启动。这项指令可能并不适用于所有 Mac。

    • 开机,并打开终端

    • 将以下命令复制粘贴到(或完全键入)终端窗口中:

    • sudo nvram AutoBoot=%00

    • [回车]。如果出现钥匙提示,请输入管理员密码(开机密码)并再次按[回车]。注意:您的回车键也可能标有「⏎」或 return

    • 你现在可以安全地关闭Mac电脑,并打开底壳,它不会再意外启动了。

    • 当修理完成、成功组装复原Mac电脑后,在「终端」中使用以下命令来启用「自动启动」功能:

    • sudo nvram AutoBoot=%03

    Is this step necessary? I can’t perform this step as I am attempting to repair water damage and need to remove logic board & most likely replace the battery.

    lamajr - 回复

    @mac_medic You definitely don’t want the power coming on while the board is wet. In your case, I think powering on the machine to disable Auto Boot would do more damage than it prevents. I agree, skip this step and be prepared to disconnect the battery quickly if the laptop automatically powers on. Good luck!

    Jeff Suovanen -

    Thats right! You don't want power running while working on your logic board.

    Dan -

    This did not work when running High Sierra.

    Kyle B - 回复

    Tried this on a 2018 MBP 13” Touchbar (there’s no iFixit guide for this model yet). Need to replace a broken screen.

    Luckily I managed to connect to an external screen (Cmd-Down Brightness to switch displays) and enter above command. Seems to work, but there’s another problem with this model - it powers up as soon as any key is pressed……. ffs <gnashes teeth>

    Cool_Breeze - 回复

    I unscrew the battery first and wrap electrical tape over the logic board battery connector before attempting any repairs to the board. Haven’t had any problems yet and I’ve worked on about 10 of these models already. Also when you open the bottom case use a suction cup at the bottom and pull up then run a plastic spudger along the edges to disconnect the clips. Also only use a plastic spudger on the board. Saw a youtube video from a repair shop and he did not disconnect the power and used all metal tools during the entire process of removing the board. His last step was to disconnect the battery terminal.

    Brian - 回复

    Is this step necessary if my mac can turn on? Battery fully dead(

    Nursat b - 回复

    BEFORE YOU START: The included torx head stripped off before I was done (and you might need an additional T4) so stop now and go buy a good one. Also they fail to warn you above to get some blue threadlocker ahead of time.

    Jason Sherron - 回复

    This command did not work for me and I read that sometime in later 2020 Apple stopped this command from working…any ideas on a work around?

    Patrick Machacek - 回复

    Not able to do that with damaged screen

    richardjgreen - 回复

    If you have a damaged screen you can still use a converter from thunderbolt (USB 3) to HDMI and plug your Macbook Pro to your TV as monitor display. Just make sure to chose the right Source (HDMI IN) in your TV. I did it and to make it work I unplug and plug again in my Macbook and so I could disable the Auto boot

    Roberto Sanchez Bustos -

    Hi. This does not work on 2018 13” MacBook Pro with Touch Bar. I did exactly this to disable auto boot. But when I check by using nvram -p it says: auto-boot true. Am I doing something incorrectly? I did everything step by step. Copied and pasted the sudo command, pressed enter and then entered my password. I have Big Sur 11.1 installed. Is there any other way since I need to replace the screen. Thank you. Adrian

    Adrian Vizik - 回复

    Hi everyone. This is also a little pointless if you can’t see anything on the screen, and you don’t have a display adapter to USB C to display it. I agree with Brian about removing the back and disconnecting the battery cable before you even think about opening the lid of the MacBook. Applying the insulation tape is also a handy little tip that just makes sure there is no way to discharge from either the board or battery.

    Roberto Enrieu - 回复

    running `nvram -p | grep 'AutoBoot'` in terminal verifies that it was accepted

    result: `AutoBoot %00`

    Marek Polák - 回复

    Running Big Sur 11.6.7 on a 2019 16" MBP, it's "auto-boot". So it's: nvram -p | grep 'auto-boot' to display the current state, the default is true - and then to change it, sudo nvram auto-boot=false which turns it off.

    Ed Mechem -

    This step is completely unnecessary if you follow the guide to disconnect the battery properly. Just put some tape between the battery and logic board connection to prevent it from accidentally touching and therefore powering on the laptop.

    Grant Ormsby - 回复

    It took me a few tries to make this command work, as I was able to copy and paste the command into Terminal, but could not type in my laptop’s password. I finally typed my password into a text document, copied it (command C), and then pasted it into Terminal and it worked.

    tommy404 - 回复

    I didn’t do this. Mine never auto-booted before I replaced the battery. Now it does.

    hatuxka - 回复

    BEFORE YOU DO ANYTHING - CHECK THE BATTERY!

    I-fixit sent me a bad battery, which I didn’t realize until it was already install. They sent me a new one, but I wasted hours uninstalling and reinstalled.

    Get a volt meter and measure the voltage on the output of the battery pack. If it reads 0 V, SEND IT BACK. It should read over 2 V.

    bcardanha - 回复

    When I did this from Terminal.app within Recovery Mode, the “sudo” was not recognized but I could invoke it without the sudo part. It seems to have been accepted when looking at “nvram -p”

    johann beda - 回复

    When in Recovery Mode, you already have superuser powers. So you don't need to prefix commands with the sudo command to invoke them with root privileges; you already have them. Do a pwd (print working directory) after opening Terminal in Recovery Mode, and you'll see that you're in the root user's directory.

    Ed Mechem -

    I received the battery kit for my 2018 MacBook Pro and as per the above comment from bcardanha - Oct 12, 2021, I checked the voltage on the pads marked + and - . It was zero volts so I panicked a bit.

    I sent a message on the iFixiT Facebook page and I got no reply. I finally found the customer service email for Ifixit Europe and sent them an email voicing my concern as I was not keen to work for couple of hours just to discover that the battery is faulty. I had an almost instant reply on the email (kudos to them) and they adviced me to go ahead and install the new battery as the voltage measured when battery is not connected is not relevant.

    I took a leap of faith and after two hours… the new battery showed 50% charge and everything seems to be working just fine. I am happy it worked.

    Mircea Comanici - 回复

    After removing the old battery and installing the new battery I powered up the MBP before screwing the bottom on. I discovered the my keyboard would not function. It took a few hours of investigation and frustration that I discovered the track pad power ribbon had become partially dislodged from the trackpad. I was able to see that this through the little machined slot where the battery sat. I had to remove the trackpad to reinsert the power ribbon back into the connector in the trackpad. after reassembling and reinstalling the battery etc the keyboard worked. Just food for thought if your run into the keyboard issue.

    Ed Mease - 回复

    This should be the default. IMO I tell you to power on - not the lid.

    G Sena - 回复

  2. 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 移除五角螺丝: 步骤 2 中的图像 1,1
    • 在继续之前,请拔下并关闭MacBook电源。关闭显示屏并将其放在柔软的表面上,顶部朝下。

    • 使用P5 五角螺丝刀卸下固定下壳的六个螺钉:

    • 两个6.2 mm 螺丝

    • 四个3.4 mm 螺丝

    • 在整个维修过程中,记录每个螺钉并确保它准确地回到原来的位置以避免损坏你的设备。

    Sur le mien A1708 EMC3164 j’ai 4 vis de 6,2 (les coins) et 2 vis de 3,4 celles au milieu en bas

    Olivier Cecillon - 回复

    Ce tutoriel n’est pas dans la bonne section !

    c’est le 13” avec touch bar et non celui avec les touches de fonction .

    l’autre tuto nommé “écran complet” est le bon

    Vincent Morault - 回复

    Bonjour Vincent,

    Si vous cherchez le même tutoriel pour le MacBook 13” non Touch Bar, le voici : https://fr.ifixit.com/Tutoriel/Remplacem...

    Claire Miesch -

    Before you start I suggest you get magnifier eyeware as screws and connectors are very small and good lightning are a big PLUS

    Gilles Vigeral - 回复

    Completed whole steps in over 4 hours….but worth it. Works back perfect and battery error message is gone….

    Gilles Vigeral - 回复

    Nothing beats a properly grounded ESD workstation, and a grounded wrist strap.

    Robin Ray - 回复

  3. 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 用吸盘打开一个空隙: 步骤 3 中的图像 1,2 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 用吸盘打开一个空隙: 步骤 3 中的图像 2,2
    • 在MacBook Pro前中心区域附近的下壳上使用吸盘。

    • 抬起吸气手柄,使下壳与底盘之间略微分离。

  4. 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 分离夹扣: 步骤 4 中的图像 1,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 分离夹扣: 步骤 4 中的图像 2,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 分离夹扣: 步骤 4 中的图像 3,3
    • 将三角撬片的一角插入下壳和底盘之间的空间。

    • 将三角撬片绕最近的角落滑动,并在箱子侧面的一半处滑动。

    • 这将打开第一个将下壳固定到机箱的隐藏夹子。你应该感受并听到咔哒一声弹出。

    The instruction implies that sliding the pick up to the side of the case releases the clip. This is far from the truth; it takes a pretty strong force to pop the clip open. The plastic pick is a good start, but you need to reach in and pull the middle of that side of the case pretty hard.

    dkraemer2 - 回复

  5. 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 5 中的图像 1,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 5 中的图像 2,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 5 中的图像 3,3
    • 在相反的一侧重复上一步,在下壳下方向上滑动三角撬片,向上滑动打开第二个夹扣。

  6. 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 6 中的图像 1,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 6 中的图像 2,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 6 中的图像 3,3
    • 在下壳体的前边缘下方,在两个最中心的螺孔中的一个附近插入三角撬片。

    • 选择一个扭动角度,弹出第三个夹扣。

    • 在两个最中心的螺丝孔附近重复此过程,释放第四个夹扣。

    Look at Step 8 pics 2 and 3 to see exactly where the clips are that need to be released. Taking the bottom cover off my MBP took for ever because I didn’t realize the clips were not right around the edges as the wording suggests. Once I realized this, it came off quickly and easily.

    Troy Reimche - 回复

  7. 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 7 中的图像 1,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 7 中的图像 2,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换: 步骤 7 中的图像 3,3
    • 将下壳牢固地拉向MacBook的上壳(远离链接区域),以分离固定下壳的最后一个夹子。

    • 首先拉动一个角落,然后另一个角落可能有帮助。

    • 往旁边拉动,而不是上面。

    • 这可能需要很大的力气。

    On the 2018 model, there are two more clips that need to be popped on the sides in the middle. Then it slides out easily.

    Cool_Breeze - 回复

  8. 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 移除底壳: 步骤 8 中的图像 1,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 移除底壳: 步骤 8 中的图像 2,3 2016年末带Touch Bar的13英寸MacBook Pro 底壳更换, 移除底壳: 步骤 8 中的图像 3,3
    • 移除底壳。

    • 要重新安装底壳:

    • 轻轻放置后盖并对齐靠近屏幕折叠铰链附近的滑动夹子铰链。向下按压并向屏幕折叠铰链方向滑动盖子。夹子接合后滑不动为止。

    • 当滑动夹完全啮合并且后盖看起来正确对齐时,牢牢地按下后盖以接合下面的四个隐藏的夹子。你应该能感觉到并听到它们迅速到位的声音。

结论

请按逆序重新组装你的设备。

7等其他人完成本指南。

特别感谢这些译者︰

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3条评论

So how does one re-affix the clips when it’s time to replace the bottom case?

jseliger - 回复

Yeah, Ifixit is SOOOOO great except for explaining reassembly steps that don’t just involve ‘reverse order’ like this %#*@ bottom case. I did a whole display (yay me!) and am now stumped as to the last step of reassembly. If you just put it back on and put the screws back in, there’s an increasing gap from the rear 2 screws to where the display hinge begins (that sits flush before taking it off). There seems to be no ‘popping’ it in place and the pegs on the underside of the cover are in the middle.

debmocracy - 回复

@jseliger You’re both right, that was an oversight! It really is pretty much reverse of disassembly, but it can take a little practice. See the final step for some new reassembly tips. Hope this helps!

Jeff Suovanen -

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