Dell Inspiron 3481 (EDI72 LA-G714P) Powers with charger blinking code

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Umadbro
    Senior Member
    • Jul 2018
    • 65
    • Portugal

    #1

    Dell Inspiron 3481 (EDI72 LA-G714P) Powers with charger blinking code

    Hi, I've been given this laptop which upon plugging the charger it produces a blinking code, and it goes as follows:

    "3 AMBER, 5 WHITE"

    Pressing the Power Button, the machine seems to power up, as the fan spins (at a normal rate), but after a few seconds the power cuts off, and the cycle repeats.


    Searching on Google for the blinking code for this device doesn't return any valuable information. The code is not listed on the service manual. However, I found out that for others or similar models "3 AMBER, 5 WHITE" blinking code means ''POWER RAIL FAILURE". I am going to use a schematic I found to test some power rails, as casual probing for a short didn't show any major problem with the board.

    I also read that the problem may be correlated with an EC power controller issue, so I went ahead and did a few dumps on the W25Q128JV ic, but every dump was different from the previous one once compared using HxD. I cannot tell why this is, I tried different USB ports/laptops always with the same result.

    In the meantime, I found a second ic on the motherboard where I'm sure the EC information is stored. Later today I am going to make a few dumps and add them to the post. The name of the ic is APL5934D.


    I don't believe that the issue is power related, as the machine is not at all old and has very few to no marks of wearing, so I would like an opinion about the dumps I made and the error the machine produces before proceeding deep into motherboard repair. I am attaching the files I have now and later I will try to get the other ic readings. Please let me know of any other information I should provide.
    Last edited by SMDFlea; 01-18-2022, 12:30 PM.
  • Umadbro
    Senior Member
    • Jul 2018
    • 65
    • Portugal

    #2
    Re: Dell Inspiron 3481 (EDI72 LA-G714P) Powers with charger blinking code

    It seems I am most likely wrong about the other ic. It has nothing to do with the issue.

    I tried to get new dumps on the Winbond ic, with the same result, every reading is different.

    Comment

    • SMDFlea
      Super Moderator
      • Jan 2018
      • 20551
      • UK

      #3
      Re: Dell Inspiron 3481 (EDI72 LA-G714P) Powers with charger blinking code

      Originally posted by Umadbro
      It seems I am most likely wrong about the other ic. It has nothing to do with the issue.

      I tried to get new dumps on the Winbond ic, with the same result, every reading is different.
      When you get a good bios dump post it in the "Bios Requests ONLY!" section -

      https://www.badcaps.net/forum/forumdisplay.php?f=40

      What bios programmer are you using,and the software version.Are you using a clip .Are you using auto detection or manually choosing it from the part number on top of the chip
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

      Comment

      • Umadbro
        Senior Member
        • Jul 2018
        • 65
        • Portugal

        #4
        Re: Dell Inspiron 3481 (EDI72 LA-G714P) Powers with charger blinking code

        Originally posted by SMDFlea
        When you get a good bios dump post it in the "Bios Requests ONLY!" section -

        https://www.badcaps.net/forum/forumdisplay.php?f=40

        What bios programmer are you using,and the software version.Are you using a clip .Are you using auto detection or manually choosing it from the part number on top of the chip

        Hi. I managed to get multiple dumps that match each other. But to answer your question, my programmer is "CH341A minProgrammer", the software I'm using is "Ch341a Programmer V2.2.0.10". I used auto detection which gave me 3 options, I chose according to the ic I have.

        I solved the issue by removing the cover I put on leg 4 of the programmer. For some reason on my first use, this programmer wouldn't detect the flash, and the solution ended up to be covering leg 4 (gnd), after that, it detected many other ics, so I ust left it there. This times it seems it wasn't letting the reading being done propperly.

        I am happy to post my results on "Bios Requests ONLY!", but as I am not sure if the issue lies here, I thought it would be best to create a new topic to diagnose the issue.
        Last edited by SMDFlea; 01-18-2022, 03:11 PM.

        Comment

        • Umadbro
          Senior Member
          • Jul 2018
          • 65
          • Portugal

          #5
          Re: Dell Inspiron 3481 (EDI72 LA-G714P) Powers with charger blinking code

          Originally posted by SMDFlea
          When you get a good bios dump post it in the "Bios Requests ONLY!" section -

          https://www.badcaps.net/forum/forumdisplay.php?f=40
          Am I doing it wrong? Should I create a new thread or find one of the same motherboards and issue to post my interest?

          I don't want to place it in the wrong spot or hang to another post when I shouldn't, but I just did that over at:

          https://www.badcaps.net/forum/showth...68#post1100168

          Please let me know the right way so I won't cause problems.

          Comment

          • SMDFlea
            Super Moderator
            • Jan 2018
            • 20551
            • UK

            #6
            Re: Dell Inspiron 3481 (EDI72 LA-G714P) Powers with charger blinking code

            Originally posted by Umadbro
            Am I doing it wrong? Should I create a new thread or find one of the same motherboards and issue to post my interest?

            I don't want to place it in the wrong spot or hang to another post when I shouldn't, but I just did that over at:

            https://www.badcaps.net/forum/showth...68#post1100168

            Please let me know the right way so I won't cause problems.
            you have posted it in the right place,don`t worry, someone ill try to fix it for you.
            All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

            Comment

            • Umadbro
              Senior Member
              • Jul 2018
              • 65
              • Portugal

              #7
              Re: Dell Inspiron 3481 (EDI72 LA-G714P) Powers with charger blinking code

              Originally posted by SMDFlea
              you have posted it in the right place,don`t worry, someone ill try to fix it for you.
              thank you

              Comment

              Related Topics

              Collapse

              • flat-earther
                ASUS X54H laptop thinks it's always charging even with charger unplugged
                by flat-earther
                The charging indicator light on my ASUS X54H laptop is always on even when the charger is disconnected.

                Windows also shows ''Plugged in'' when charger is not connected.

                This problem started year ago gradually, when unplugging the charger the charging light took several seconds to disappear, then minutes, and now almost always on even when unplugged for an entire day.
                Strangely, before sometimes immediately when plugging in the charger the charging light went away, and later came back with it connected.
                If I let battery run out and say it has 3% Windows will...
                06-24-2025, 09:32 AM
              • motormayhem
                Lenovo T460 Only Charges on One Charger
                by motormayhem
                Laptop Question
                Hello,
                I'm working on a Lenovo T460 that has been having trouble charging as of late. Its worked well since I've owned it for a few years. When I went to use it the other day it was dead and wouldn't turn on (was sitting on an Anker 65W GaN charger). After some fiddling with the charger I got it to turn on and start charging, but seemed like the charger was not working as it should (took a few plug and unplug cycles to get it to start charging).

                A day later it was dead again and wouldn't boot/charge no matter what I did. No lights or anything when...
                05-12-2023, 01:46 PM
              • Document Archive
                DELL Inspiron 3481 Notebook 3000 Specification for Upgrade or Repair
                by Document Archive
                This specification for the DELL Inspiron 3481 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 3481 boardview and 3481 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Inspiron 3481...
                09-06-2024, 12:36 PM
              • Document Archive
                DELL Vostro 3481 Notebook 3000 Specification for Upgrade or Repair
                by Document Archive
                This specification for the DELL Vostro 3481 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 3481 boardview and 3481 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Vostro 3481 Notebook...
                09-06-2024, 12:36 PM
              • Document Archive
                DELL Inspiron 3481 Notebook 3000 Specification for Upgrade or Repair
                by Document Archive
                This specification for the DELL Inspiron 3481 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 3481 boardview and 3481 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Inspiron 3481...
                09-06-2024, 12:36 PM
              • Loading...
              • No more items.
              Working...