Headphone jack left channel not working

Discussion in 'MacBook Pro' started by chrisrosemusic1, Feb 26, 2014.

  1. chrisrosemusic1 macrumors 6502a

    chrisrosemusic1

    Joined:
    Jan 31, 2012
    Location:
    Northamptonshire, England
    #1
    Since firmware/security patch I've noticed I can't hear any sound through the left channel when plugging in headphones to my retina MacBook Pro - Has anyone else noticed this issue?? Balance settings etc are as they should be in preferences. It may be a hardware failure but I've only just noticed but wasn't sure if this may also be a coincidence.

    Any input??
     
  2. nickandre21 macrumors 6502a

    Joined:
    Jun 21, 2012
    #2
    Try and check with other head phones or speakers. If that does not work go to recovery mode, and verify it will usually have audible instructions as well. Or you could go into a different user account. If nothing helps it best you take it in.
     
  3. nealh macrumors 6502

    Joined:
    Jul 20, 2010
    #3
    Was this after 10.9.2 update?

    I noticed the right channel having lower volume for me. Same headphones with my iPhone 5S, sound is normal and much better.
     
  4. chrisrosemusic1 thread starter macrumors 6502a

    chrisrosemusic1

    Joined:
    Jan 31, 2012
    Location:
    Northamptonshire, England
    #4
    Yeah - turns out my headphones had died anyway but yes, go in to your sound settings as the balance was way off after updating which is bizarre.
     
  5. nealh macrumors 6502

    Joined:
    Jul 20, 2010
    #5
    sorry I forgot to thank you for this. Thank you!
     
  6. whitedragon101 macrumors 6502a

    Joined:
    Sep 11, 2008
    #6
    Weird I thought the balance was off but I thought the speaker was dying.

    Yep post update the balance was shifted way to the right in the settings.
     
  7. chrisrosemusic1 thread starter macrumors 6502a

    chrisrosemusic1

    Joined:
    Jan 31, 2012
    Location:
    Northamptonshire, England
    #7
    Yeah, it's a crazy flaw in the update, but yes, happy we don't all have faults :)

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    You're welcome :)
     

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