Asus X555LD after watter damage - won't turn OFF

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  • bajdik
    Senior Member
    • Aug 2015
    • 64
    • Czech Republic

    #1

    Asus X555LD after watter damage - won't turn OFF

    Hello,
    I have a problem with Asus X555LD after watter damage.

    The KBC chip with some traces was damaged.
    I changed KBC chip, repair trace. Laptop works great, but if I turn it off,
    it turn on again. If I put adapter in it, it power on.

    Any idea? Schematic is not available..
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14048
    • Canada

    #2
    Re: Asus X555LD after watter damage - won't turn OFF

    Which version of X555LD is your board ?

    Need to check your DCin mosfets to see if they are leaking.

    Comment

    • bajdik
      Senior Member
      • Aug 2015
      • 64
      • Czech Republic

      #3
      Re: Asus X555LD after watter damage - won't turn OFF

      version 3.6

      No problem with MOSFETS.

      Comment

      • mon2
        Badcaps Legend
        • Dec 2019
        • 14048
        • Canada

        #4
        Re: Asus X555LD after watter damage - won't turn OFF

        Attached is the boardview file for this version of the logic board.
        Attached Files

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india

          #5
          Re: Asus X555LD after watter damage - won't turn OFF

          You turn it off from windows and it reboots instead of shutting down?? Is this what you mean??

          Or whenever adapter is connected it auto turns on-which one do you mean??

          Comment

          • bajdik
            Senior Member
            • Aug 2015
            • 64
            • Czech Republic

            #6
            Re: Asus X555LD after watter damage - won't turn OFF

            Both. it looks like a workoholic :-) There is no way how to power off this laptop if battery is charged or adapter is inserted.
            If I push power button for 6 seconds to power off, after 0,5 seconds it power on again.

            Comment

            • mcplslg123
              Badcaps Legend
              • Jun 2015
              • 7262
              • india

              #7
              Re: Asus X555LD after watter damage - won't turn OFF

              Its usually related to PCI_Wake signal. In absence of schematics for asus, thats difficult to trace. I'll suggest the following:
              01.Clean install windows with no drivers installed
              02.Remove Wifi card
              03.Remove power button and try to turn off with tweezers.
              04.Remove Lan chip

              If still problem persists, probe dc-dc conversion circuit and/or remove audio/card reader chip also.

              PS: I assume you have already tried bios flash.

              Comment

              • bajdik
                Senior Member
                • Aug 2015
                • 64
                • Czech Republic

                #8
                Re: Asus X555LD after watter damage - won't turn OFF

                There is a no HDD, WiFi modul and still do it the same.
                Power button is on the board directly, but I checked it - button is OK.

                On the KBC should not be any signal for that?

                Comment

                • mon2
                  Badcaps Legend
                  • Dec 2019
                  • 14048
                  • Canada

                  #9
                  Re: Asus X555LD after watter damage - won't turn OFF

                  Search for the keyword 'wake' to see if any such signals are present on the logic board.

                  Comment

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