My Macbook won't turn on (HELP please)

Discussion in 'MacBook' started by leftindust, Oct 9, 2011.

  1. leftindust macrumors newbie

    Oct 9, 2011
    I posted this on the apple support page and got no where,

    I got a new MacBook Pro recently, and through idiocy and excitement, I forgot to properly shut down my old MacBook whilst using my new macbook pro. I have had the new laptop for about two weeks, and I'd left the previous one on sleep.
    I figured the battery had just died, so I left it on charge for a few hours, hoping it would charge enough to turn on.
    however I tried to turn it on about two hours later, and it still wouldn't turn on. the battery light has been steadily green. I checked the battery bit on the bottom of the laptop and the apple support bit says that if it flashes one light green for five seconds that it means the battery hasn't charged enough yet. but the charger light hasn't been amber.
    what do I do? I really hope I haven't broken my laptop.
  2. eljanitor, Oct 9, 2011
    Last edited: Oct 9, 2011

    eljanitor macrumors 6502


    Feb 10, 2011
    It doesn't turn on? Or it doesn't boot up to the desktop?

    When you plug the power adapter into your laptop it should power right up even if the battery is too low. Just push the power button and that should do it when its plugged in.

    I can suggest that maybe you need to hold the power button down for 5-10 seconds continuously because it sounds like its in that low power sleep mode, and that sometimes solves it. Then all you need to do is push it once normally to turn it back on.

    Otherwise click on the link here to and follow the instruction on how to reset the SMC, and after doing that see if you fixed it.

    How to reset the SMC:
  3. kaydot macrumors regular

    Sep 15, 2011
    This sounds possibly like a case of "dead battery" that happens on older macbooks when left in sleep mode for a few days. If this is true, the battery is basically scrap at this point and will not charge. The MacBook should still turn on however if plugged in to the wall charger. Press and hold the power button 5 seconds to force-power off the machine (you should hear a small click as the machine powers off). Then turn on as normal. Hopefully this works!
  4. leftindust thread starter macrumors newbie

    Oct 9, 2011
    Eljanitor, I tried the 10 seconds thing, it still did nothing. it doesn't have the sleep light on either, it's completely dead.

    Kaydot, I thought the battery may be dead, but the whole system doesn't turn on regardless of being plugged in or not.

    Should I attempt the SMC thing, because if I can't turn it on at all, can I still do it?
  5. eljanitor macrumors 6502


    Feb 10, 2011
    Is this a Macbook Pro that has a removable battery? Or a newer one with the built in battery?

    If you can take the battery out from the bottom. Do that first, then plug in the mag safe, you can use the one from your newer Mac Book pro ( just in case the old one suddenly stopped working somehow). Then see if it powers on normally.

    If that doesn't work, or it has the built in battery:
    Go to the link I put in my previous post and follow the directions to reset the SMC for your type of MacBook Pro. Or look at the two image attachments in this post and choose the one that applies to your model.

    Attached Files:

  6. old-wiz macrumors G3

    Mar 26, 2008
    West Suburban Boston Ma
    The OP says a new MacBook, so why not take it to the Apple Store to be checked ut. You are still under warranty for year.
  7. leftindust thread starter macrumors newbie

    Oct 9, 2011

    No, I have a new Macbook Pro that's fine, but my old Macbook (which is no longer under warranty) is not fine.

    eljanitor, my new macbook pro has an unremovable battery, but my old macbook has a removable one. however if it doesn't power at all when plugged in, what difference will removing the battery do?
  8. eljanitor macrumors 6502


    Feb 10, 2011
    Sometimes the battery can cause problems when it gets old, or if its defective. So what I've been taught is just remove the battery, and see if it starts. If it does, it could be something wrong with the battery, and possibly the battery needs to be replaced. So it doesn't hurt to do it.

    Your laptop has several components that are involved in making the battery charge,when it's running from the power supply (when its plugged in). There's electronics in the external power supply itself, theres a circuit in your laptop called the DC board, which is sometimes built into the logic board, and sometimes not, and then theres the battery, the wires, and connectors that go in between.

    I didn't design it :D, that was some team at Apple, I just fix em. If you can't get it to work by resetting the SMC (System Management Controller), and all the other steps that I gave you, then you may want to take it in somewhere and have it looked at. If you bought your new one from an Apple dealer, or an Apple store, they may look at it quickly for free, and tell you whats wrong, or even fix it if they can quickly. You won't know until you try.

    Let me know if those steps do anything for you.

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