satellite c55dt-a5305

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  • fddizon
    Badcaps Veteran
    • Sep 2011
    • 555
    • Philippines
    #1

    satellite c55dt-a5305

    hi guys,

    the unit has no power with ALW signals present, 3.3v power switch present

    Looking for schematic of this laptop and BIOS dump. pls include NPCE985LA0DX SIO chip datasheet if available.

    thanks

    uploaded bios dump. does anyone has this bios file?
    Attached Files
    Last edited by fddizon; 04-18-2015, 11:34 PM.
    Tags: None
    • ala_borbe
      aka Donald
      • Apr 2011
      • 1625
      • Malta
      #2
      Re: satellite c55dt-a5305

      here you go
      Attached Files
      Im Back... sort of...

        Comment

        • fddizon
          Badcaps Veteran
          • Sep 2011
          • 555
          • Philippines
          #3
          Re: satellite c55dt-a5305

          thanks... will do this tonight. will update you the laptop status.

            Comment

            • fddizon
              Badcaps Veteran
              • Sep 2011
              • 555
              • Philippines
              #4
              Re: satellite c55dt-a5305

              reflashed bios - the same symptoms.
              anyone encountered this issue?

              please share schematic if you have one thanks

              no rmsrst
              no pltrst
              .64 volts on pin3 of bios -

                Comment

                • dj_ricoh
                  Badcaps Legend
                  • Jan 2013
                  • 2073
                  • uk
                  #5
                  Re: satellite c55dt-a5305

                  Find the first qfn chip near charging port.
                  We can start from there and see if it gives 3.3v
                  Just cook it! It's already broken.

                    Comment

                    • fddizon
                      Badcaps Veteran
                      • Sep 2011
                      • 555
                      • Philippines
                      #6
                      Re: satellite c55dt-a5305

                      3.3 volts present on charging pins

                      SIO does not produce RSMRST and PLTRST
                      board has no dedicated pch chip nor dedicated gpu

                      only processor that has them all in it sodered on the mobo just a bga chip

                      already tried reflowing the processor to no avail. (dont have a bga machine)
                      Last edited by fddizon; 04-25-2015, 03:17 AM.

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