lenovo g50-30 All usb ports have power but not react to attach usb keys

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  • ktmmotocross
    Boardkiller
    • Feb 2014
    • 3580
    • slovakia

    #1

    lenovo g50-30 All usb ports have power but not react to attach usb keys

    Hello.
    Have this lenovo g50-30 that All usb ports have power but not react to attach usb keys

    all ports have good voltage
    as i see many of thhese port are connected right to CPU. do u thing that CPU is problem?
    Attached Files
  • Duranitron
    Badcaps Veteran
    • Jul 2014
    • 544
    • Philippines

    #2
    Re: lenovo g50-30 All usb ports have power but not react to attach usb keys

    try to clean the usb port maybe corroded pins.. just try it..
    Never stop LEARNING because life never stops TEACHING!

    Comment

    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india

      #3
      Re: lenovo g50-30 All usb ports have power but not react to attach usb keys

      Very likely yes ,as i beleive you have checked all parts related to usb. I'd very similar case on LA-C701P and ultimately replaced SOC to solve it. Btw, You checked D+/D- resistance??

      Comment

      • ravi_1617
        YY Solutions
        • Jan 2012
        • 343
        • India

        #4
        Re: lenovo g50-30 All usb ports have power but not react to attach usb keys

        Same board NM-A311 , all USB & webcam too stops responding

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india

          #5
          Re: lenovo g50-30 All usb ports have power but not react to attach usb keys

          Originally posted by ravi_1617
          Same board NM-A311 , all USB & webcam too stops responding
          SOC bad for sure. has faced it on many occasions. Replacing the SOC is the only solution.

          Comment

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