MacBook Pro working only with HDMI pluged in!!??

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  • Frenk7
    Member
    • Jan 2019
    • 25
    • Croatia

    #1

    MacBook Pro working only with HDMI pluged in!!??

    I have MacBook Pro A1502 that was in contact with liquid on the keyboard side. I found that keyboard backlight connector is burned so i pluged it out and cleaned connector on motherboard side. Present state is next: when i turn on laptop after 1-5 minutes screen freezes, but the strange part is that if i plug in second monitor on HDMI port, both monitor and laptop screen work and nothing is freezing. Can you please help me?
    I am thinking that there are two circuit or two ic. When i plug in second screen second line (that was not affected by burned keyboard backlight) takes over and all is fine.
  • userscpace
    Member
    • May 2016
    • 15
    • UK

    #2
    Re: MacBook Pro working only with HDMI pluged in!!??

    Whats the board model? 820-xxxx? Is GMUX area affected?

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    • piernov
      Super Moderator
      • Jan 2016
      • 4435
      • France

      #3
      Re: MacBook Pro working only with HDMI pluged in!!??

      A1502 is 13" so iGPU only, no GMUX. Logic board can be 820-3476 (2013 8GB), 820-3536 (2013 4GB), 820-4924 (2015).
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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      • Frenk7
        Member
        • Jan 2019
        • 25
        • Croatia

        #4
        Re: MacBook Pro working only with HDMI pluged in!!??

        Sorry for not replaying...
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        • Frenk7
          Member
          • Jan 2019
          • 25
          • Croatia

          #5
          Re: MacBook Pro working only with HDMI pluged in!!??

          If this helps...
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