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简介

这一部分是当你要修理你的MacBook Pro的时候必须要做的工作。你会需要一把P5五角改锥来拆掉底壳来进入设备内部。

为了你的安全,请在开始此过程之前将 MacBook Pro 的电池放电。如果意外刺破充电的锂离子电池,可能会引发危险且无法控制的火灾。

  1. 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:
    • 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 -

    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

    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

    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

  2. 在拆你的MacBook Pro之前,把电池的电放到25%以下。一个充满电的锂电池如果被意外穿刺,它会着火或是爆炸。
    • 在拆你的MacBook Pro之前,把电池的电放到25%以下。一个充满电的锂电池如果被意外穿刺,它会着火或是爆炸。

    • 在你进行下一步之前,先关了电源拔了插销。

    • 用P5五角改锥来拆掉固定底壳的这六颗螺丝:

    • 两颗6.2mm螺丝

    • 两颗5.3mm螺丝

    • 两颗3.4mm螺丝

    • 在整个维修过程中,请跟踪每个螺丝并确保它准确地回到原来的位置,以免损坏你的设备。

    Before any repair is carried out that involves removing the bottom case, the machines auto-boot function has be disabled. This can be disabled via the terminal command “sudo nvram AutoBoot=%00” once the repair has been completed the auto-boot function can be re-enabled via the vermin command “sudo nvram AutoBoot=%03”.

    Aaron Dalziel - 回复

    I recommend that you have an organizer tray for all the small parts, and label it in advance with the numbered “step” associated with each removal of screws and other parts. It really helped me when I needed to put everything back in reverse order, after the new battery is glued in place.

    tommy404 - 回复

  3. 在MacBook Pro底壳的前部中心位置嘬一个带把手的吸盘。 抬起吸盘,在底壳和机身之间制造一道缝隙。
    • 在MacBook Pro底壳的前部中心位置嘬一个带把手的吸盘。

    • 抬起吸盘,在底壳和机身之间制造一道缝隙。

    To replace the bottom just line it up just like it came from the factory. Make sure it clears the display connectors. And press firmly down until the clips connect to the bottom again.

    olivia drinkwine - 回复

  4. 在底壳和机身的缝隙之间插进一个撬片。 把这个撬片滑向最近的角落,并继续滑到机身一半的位置。 这会使第一个固定底壳的隐藏卡扣解锁。你会感到并听到卡扣打开。
    • 在底壳和机身的缝隙之间插进一个撬片。

    • 把这个撬片滑向最近的角落,并继续滑到机身一半的位置。

    • 这会使第一个固定底壳的隐藏卡扣解锁。你会感到并听到卡扣打开。

  5. 在另一侧重复上一个步骤,把你的撬片从下滑到上来打开第二个卡扣。 在另一侧重复上一个步骤,把你的撬片从下滑到上来打开第二个卡扣。 在另一侧重复上一个步骤,把你的撬片从下滑到上来打开第二个卡扣。
    • 在另一侧重复上一个步骤,把你的撬片从下滑到上来打开第二个卡扣。

  6. 再把你的撬片插进底壳的前部边缘,靠近最中间的两个螺丝口其中之一的地方。 用力扭动撬片,来打开固定底壳的第三个卡扣。 在另一个最中间的螺丝口处重复上述步骤,打开第四个卡扣。
    • 再把你的撬片插进底壳的前部边缘,靠近最中间的两个螺丝口其中之一的地方。

    • 用力扭动撬片,来打开固定底壳的第三个卡扣。

    • 在另一个最中间的螺丝口处重复上述步骤,打开第四个卡扣。

  7. 用力将底壳向MacBook的前端方向(与合叶相反的方向)拉,以此来分离最后的固定底壳的卡扣。 先拉一侧,再拉另一侧,可能会有帮助。 这可能需要用点儿力。
    • 用力将底壳向MacBook的前端方向(与合叶相反的方向)拉,以此来分离最后的固定底壳的卡扣。

    • 先拉一侧,再拉另一侧,可能会有帮助。

    • 这可能需要用点儿力。

    Difficult to explain clearly, but worked easily for me by gripping the adjacent bottom and top corners then pulling in opposite directions, rather than trying to grip the hinge corner which is too narrow to afford a strong grip.

    Andrew Gordon - 回复

    I initially tried shifting the whole panel off the front after using the separating tool to make some space at the back where the hinges are. I only had luck when I pushed the panel back to it’s normal state and using the separating tool again to open the front, then getting my fingers underneath the slide it off the front was easy. I guess the lesson is to not use the separating tool to “push from the back“.

    Josh Brown - 回复

    This step really through me through a loop. My last two MBP were a 2011 and 2013 and on those the bottom just lifted off when you removed the screws. The clips and this sliding lock design added in the 2017 model was frustrating the first time. I was following a youtube video first and he did not explain the sliding part at all. I should have come here first, this guide explains it pretty well. The second time I opened my 2017, I kept an “opening pick” between the bottom panel and the body on each side, and used my two smallest screwdrivers as levers in both “front” corner screw holes. Used the same method without the picks to put it back together at the end. Wayyy easier that trying to grip the panel or laptop body. Just make sure the screwdrivers/pins that you’re using as levers are small enough to be loose in the screw holes and have room to move

    Jambu Atchison - 回复

  8. 摘除底壳。
    • 摘除底壳。

结论

要重新组装您的设备,请按逆序执行上述步骤。

将你的电子垃圾送到 R2 或 e-Stewards 认证回收商

维修没有按计划进行?查看我们的 论坛 以获取故障排除帮助。

22等其他人完成本指南。

特别感谢这些译者︰

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Jeff Suovanen

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一条评论

Une ventouse de fixation de crochet sur carrelage,

permet de soulever le fond du macBP.

M. Can - 回复

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