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I have a Mid 2014 MacBook Pro with Retina Display. As of a week ago, occasionally when I plugged in the MagSafe Adapter, the LED doesn't light up. The problem is fixed by unplugging the power adapter from the MacBook and plugging it back in.

Should I worry with this? Is it an indicator for something wrong?

Last time I remember with my previous MBP, I had the same issue and it was getting worse, and then the logic board died.

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  • Is it only the light (i.e. it does charge when it doesn't lit up?). Try resetting the SMC (System Management Controller): support.apple.com/en-us/HT201295
    – edwardmp
    Commented Sep 4, 2016 at 14:56
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    No, it doesn't charge but indeed the lcd become brighter when the magsfae plugged in, but it's not charging.Yes, I have reset the SMC and it's indeed fixed it, but the problem is coming back again later
    – webchun
    Commented Sep 4, 2016 at 14:59
  • OK so it's not just the light, but it's not charging. Are you able to try with another charger from a friend? Could just be the charger. If possible I suggest you visit a genius bar
    – edwardmp
    Commented Sep 4, 2016 at 15:00
  • Another charger is fine. I'm just abit worried because last time I had this problem with my previous mac, it ended with a failing / died logicboard. Anyway I usually leave the magsafe plugged in to power for a week, could this be the cause of this problem? And unfortunately genius bar is not possible. There is no official apple store in my country
    – webchun
    Commented Sep 4, 2016 at 15:33
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    This is a shot in the dark but here goes. I have a MBA and my magsafe LED sometimes wouldn't light up. In my case, if I remove and rotate the magsafe, the LED comes on and charges the MBA. It only works when the "good" side is on top.
    – bg2011
    Commented Sep 8, 2016 at 13:58

1 Answer 1

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This issue can often be caused by debris in the MagSafe port, I sometimes get small metallic particles, attracted there by the magnet. If this is the case, brushing the port with a dry cotton swab can fix the problem ( see here: https://support.apple.com/en-gb/HT203207)

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