Request for Assistance: HP Laptop with LA-G07FP Motherboard Power and Charging Issue

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • wagolla
    New Member
    • Jul 2013
    • 8
    • Sri Lanka
    #1

    Request for Assistance: HP Laptop with LA-G07FP Motherboard Power and Charging Issue

    HP laptop with the LA-G07FP motherboard has encountered persistent issues with powering on and charging. Here are the details:
    1. The laptop does not power on or charge consistently.
    2. When I remove and then reinsert the battery, the laptop will turn on when connected to the power adapter, and the battery charges normally.
    3. However, after approximately 1-2 days, the issue reoccurs, and the laptop will not power on or charge until I repeat the battery removal process.
    4. I have already updated the drivers and BIOS via the HP support website, but the problem persists.

    Could you assist with diagnosing this issue? I would appreciate guidance on any further steps or tests I can try.

    Thank you in advance for your support.
    ​
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14191
      • Canada
      #2
      Review the sticky above by piernov on charger circuits.

      Respectively the mosfets in the dcin power path are suspects. With no power, review their resistances across the pins:

      source (1-2-3) & drain (5-6-7-8)
      source & gate (4)
      gate & drain

      each should be high resistance of hundreds of kohms. If not, part may be defective.

        Comment

        Previous template Next

        Related Topics

        Collapse
        • Scoff
          HP Probook 470 G4 - Power and Charging Problem
          by Scoff
          Looking for some help with this one if anybody can assist please? I have an HP Probook 470 G4 Laptop which recently started to intermittently failing to turn on, with intermittent white LED light(charging LED) by the charging port when it should have been charging and showing an orange LED instead. Definitely some sort of gradual failure. Now the laptop fails to power on at all, no charging LED, no Power Button LED either - seemingly dead.
          Stripped down to the bare motherboard. The original HP battery, when disconnected from the motherboard, is reading 0.00v - possibly some sort of protection...
          07-03-2023, 09:28 AM
        • rutgerv
          Acer Swift 3 SF314-42 not powering up
          by rutgerv
          Dear all,

          For a friend I'm trying to repair an Acer Swift 3 laptop (SF314-42). I'm not a professional, but have some experience (both as amateur and professional) in working with electronic design and repair of musical instruments.

          The issue with the Acer laptop is the following:
          It was bought new and used (not heavily) at home for about three years. After normal use, it was put to sleep, connected to charger and left over night (just like any other day). The next morning, the laptop would not wake up from sleep. Instead, when pressing the power button, the power...
          08-02-2024, 06:59 AM
        • Geeker007
          Friend messed up my laptop motherboard while working on my bench
          by Geeker007
          Hi All,

          So my friend was visiting and he wanted to use my solder bench to solder on some WLED circuit board. My laptop was open on the side for RAM upgrade. I know my mistake.

          So while soldering he had too much solder on the soldering iron tip and he just shook off the soldering iron on the table itself to remove extra solder on the soldering tip and it landed on the motherboard of laptop. He then out of fear tried to remove it using solder wick and did more damage by removing some components as well. So here I am with weird situation.

          I have not tried putting...
          06-16-2025, 01:40 PM
        • julianmustofa
          Bat54cw make laptop not charging?
          by julianmustofa
          Hi all..
          long story short when i disassemble a laptop (asus gl504gs) for cleaning. I found some component deliberatelly removed from the board by unknown technician.
          turns out this component is a diode BAT54CW
          For a power protection circuit
          i installed this component and now laptop not charging anymore
          its detect the ac adapter but not charging the battery
          i removed the component again and know it start charging normaly
          i just curious why this happen, i mean it should be there from factory but why when i installed it and it make the laptop not charging?...
          10-12-2024, 07:24 PM
        • TurcoLoco
          I Would Like To Fix This HP Laptop, Model:15-dy5058cl
          by TurcoLoco
          Hello all,
          My first post on this forum. Looking at the "Beginner's Guide", I am in the second group even though I'd like to fix this laptop so I can donate it to someone.
          I am a computer tech but very new to electronics repair iow, a total noob but in the process of learning, hence posting here. The laptop was donated to me by a client.
          It is a couple of years old 15" HP Laptop, Model:15-dy5058cl, Prod ID: 8L5X9UA.

          The issue: Charger is detected but doesn't charge the battery.
          Laptop won't power on without the battery (not sure if this is by...
          06-26-2025, 04:54 PM
        • Loading...
        • No more items.
        Working...