Case Flex Causing Shutdown on MacBook 12

Discussion in 'MacBook' started by mailman199, Jun 9, 2019.

  1. mailman199 macrumors newbie

    mailman199

    Joined:
    Nov 4, 2008
    Location:
    New York
    #1
    I have the most current version on the MacBook 12 and when I pick it up from the right corner next to the trackpad with the screen open the minor flexing of the case causes a shutdown. I'm assuming something internal is shorting out when this happens. Is this a known issues that others have dealt with. The machine is out of warranty. Could it be as simple as a loose cable that I could make more secure?
     
  2. Four by Six macrumors newbie

    Joined:
    Mar 13, 2015
    #2
    Are you sure it is shutting down? Mine does this sometimes, and it is just the screen losing power (not the backlight, the entire panel is dead). Opening and closing the lid a few times, and the screen gets power again and everything is as it was before the "shutdown". So, before you hit the reset button, try opening and closing the lid a few times.

    To the best of my knowledge, this is a design flaw and not a loose cable. Mine does the exact same thing. If I pick it up from the right corner with screen already open, and the case flexes, my screen goes out. Opening and closing the lid a few times and it is back. For many months I thought the laptop went dead and held power button down for a reset, but then discovered it was only the screen making it look like the laptop was dead. YMMV.
     
  3. mailman199 thread starter macrumors newbie

    mailman199

    Joined:
    Nov 4, 2008
    Location:
    New York
    #3
    Yes, it is suffering an immediate shutdown. I get the progress bar and full restart with an error message that the machine shutdown due to an error. I ran the hardware test and it came back clean.
     
  4. DeltaMac macrumors G3

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #4
    I suspect that the battery connector may not be fully seated. Should be simple to discover.
    Just remove the bottom cover, find the battery connector, disconnect, and firmly reseat. That should do the trick.
    (Not so fast :cool: )
    There's a few sites that can show how to do that minor disassembly.
    iFixit.com is good - https://www.ifixit.com/Guide/Retina+MacBook+2017+Battery+Replacement/110039
    Note that there are important power issues that you must watch out for, such as making sure that your MacBook does not power on while you are looking around inside. That quide has several of those steps. You only need to go from beginning to step 13/14 (don't miss any steps), but that's as far as you need to go, as that gets you to the step for disconnecting the battery. You would only go further if you need to replace the battery (which MIGHT be necessary, depending on what else you find)
    IMPORTANT: if you are not comfortable with opening your MacBook, take it to an authorized Apple service/Apple store. Even though you may not have warranty, a service shop may fix a loose connector much more quickly than you might, and should be familiar with the connectors to see other issues, such as corrosion on the connector, or even a swelling battery. A mechanical issue where you lose power by slight twisting of the case might even be a failing battery cell, and you may want that looked at someone who perhaps has seen that same issue before.
     

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3 June 9, 2019