White macbook unibody doesn't power on and the adapter doesn't turn green anymore.

Discussion in 'MacBook' started by britpoprule, Mar 31, 2015.

  1. britpoprule, Mar 31, 2015
    Last edited: Mar 31, 2015

    britpoprule macrumors member

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    Mar 31, 2015
    #1
    Hello guys. I really need your help.
    I describe my situation at the moment and then how it happened.

    I have a white macbook unibody model A1342.
    It doesn't power on and the adapter doesn't turn green anymore.
    At the moment I've found a way to power on. Pressing the SMC buttons on the keyboard and then pressing the power button on his own for a few seconds. And then press it again quickly.
    The fan heater unfortunately runs fast and never cools down.

    How did it happen.
    My trackpad wasn't working properly, it was too heavy. So as watched in a youtube video, I had to loose the screw below after removing the battery.
    So I turned off the mac, I opened the back of it and I unplugged the battery. In the moment I was unplugging the connector it appeared a little sparkle nearby on the logic board. As soon as I put everything back and I tried to power on the mac, the situation above happened.

    What do you think happened? Is the logic board burned? Is the magsafe board? Obviously the second would be cheaper to replace. If it's the logic board, do you think it can be repaired, or only replaced?

    Please let me know. Your help would be much appreciated.
     
  2. bibyfok macrumors 6502

    bibyfok

    Joined:
    Jun 14, 2012
    Location:
    France
    #2
    In my opinion it's the mainboard who took the juice... Honestly I would not think on repairing it as a mainboard would cost more than the computer price.
    You should put it on ebay "for spare parts", you could get maybe 100-200$ and get a new computer...
    Sorry for you :/
     
  3. britpoprule thread starter macrumors member

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    Mar 31, 2015
    #3
    Now it turned off. I need a way to turn it on again otherwise I won't be able to buy a new one from the internet.
     
  4. britpoprule thread starter macrumors member

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    Mar 31, 2015
    #4
    I just don't understand why when I disconnected the battery connector from the logic board (with the help of a screwdriver) it came out a sparkle. (The laptop was not connected to the power supply). That's when I realised that the logic board got damaged.
     
  5. Samuelsan2001 macrumors 603

    Joined:
    Oct 24, 2013
    #5
    Are you in the uk???


    A guess from your username...

    If so currys had the 2014 macbook airs and the retina macbook pro 13 at pretty steep discounts last week may be worth a look if you want something quick.
     
  6. bibyfok macrumors 6502

    bibyfok

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    #6
    Screwdriver making a shortcircuit ?
     
  7. britpoprule thread starter macrumors member

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    Mar 31, 2015
    #7
    Why did that happen if there was no power supply connected and so no electricity.
    Just to avoid the same mistake in the future.
     
  8. mojolicious macrumors 68000

    mojolicious

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    Sarf London
    #8
    Spludgers are your friend.
     
  9. britpoprule thread starter macrumors member

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    Mar 31, 2015
    #9
    Ok, so spludgers for connectors...but screwdrivers shouldn't cause shortcircuits with screws..so I should be able to use them. Is that right?
     
  10. mojolicious macrumors 68000

    mojolicious

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    Location:
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    #10
    Not sure what you were doing... originally interpreted it as you used a screwdriver to disconnect the battery from the logic board (ie in place of a spudger). Are you saying you were simply unscrewing the battery retainers when it happened?

    My guess would be static discharge.
     
  11. britpoprule thread starter macrumors member

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    Mar 31, 2015
    #11
    I was using the screwdriver to disconnect the battery connector from the logic board when the sparkle appeared.

    I was just asking in general, as I will remove the current logic board and put a new one.
     
  12. bibyfok macrumors 6502

    bibyfok

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    Jun 14, 2012
    Location:
    France
    #12
    The battery connector has many super small pins with... wait for it... electricity.
    Using a metalic tool to remove it = #friedmotherboard

    Sorry for you mate.
     
  13. mojolicious macrumors 68000

    mojolicious

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    Sarf London
    #13
    Ah. In that case I refer you to bibyfok's post.

    :(
     
  14. britpoprule thread starter macrumors member

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    Mar 31, 2015
    #14
    Isn't a spudger metallic too?
     
  15. DeltaMac macrumors 604

    DeltaMac

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    Location:
    Delaware
    #16
    No, this is a spudger....
     

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  16. britpoprule thread starter macrumors member

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    Mar 31, 2015
    #17
    https://www.ifixit.com/Guide/MacBook+Unibody+Model+A1342+Logic+Board+Replacement/1675

    The one used here in ifixit seems metallic.
     
  17. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #18
    Nope
    The nylon material appears almost shiny, but that's just from the lighting in the ifixit pictures. Not in any way metallic.
     
  18. bibyfok macrumors 6502

    bibyfok

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    France
    #19
    Yeah, I got some of them and they are in nylon but looks a bit like metal.
     

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