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  1. #1


    Member Since
    Sep 16, 2010
    Posts
    11
    Mac Book Pro Constantly on mute!? Help Please!
    What would cause a Macbook Pro to be constantly stuck on mute? It has the "prohibited" sign when you volume up and down, but regardless of +/- volume it shows the volume all the way up... Help please

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    50,266
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, Sierra
    Can you see a red light shining through your sound output jack?

  3. #3


    Member Since
    Sep 16, 2010
    Posts
    11
    No. No red light shining there. Where you plug you headphones in right? No red light there.

  4. #4


    Member Since
    Sep 20, 2010
    Posts
    1
    I had the same problem. check the system profiler, and look for your audio driver (if its an intel mac), or soundcard. mine wasnt appearing, when i took it in, they replaced my logic board and motherboard. i would really get that checked out just incase it causes any other problems

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