HP laptop won't start up?


  1. Posts : 19
    Linux, Windows 10, Android
       #1

    HP laptop won't start up?


    Hi, I have a problem with my laptop:

    With the power on the power light is on.
    When I press the start button the light goes off immediately and the screen does not start.

    Any ideas please?

    (it's a Pavilion 14-AL106NA)

    Many thanks.
      My Computer


  2. Posts : 13,301
    Windows 10 Pro (x64) 21H2 19044.1526
       #2

    Start with the basics
    Unplug and remove the battery
    Press the power button a few times to get rid leftover charge.
    Replace the battery and plug it back in.
    try restarting.
      My Computers


  3. Posts : 39,995
    windows 10 professional version 1607 build 14393.969 64 bit
       #3

    Find a flash drive.

    On a working computer use the flash drive to create: HP diagnostics UEFI
    https://www8.hp.com/us/en/campaigns/.../pc-diags.html

    Run the extensive tests overnight.
    The next AM run component tests (some are interactive)

    Use camera or smartphone camera to take pictures and post images into the thread.


    Take Screenshot in Windows 10

    How to Upload and Post Screenshots and Files at Ten Forums


    https://support.hp.com/us-en/document/c01732674
      My Computer


  4. Posts : 1,604
    Win 10 home 20H2 19042.1110
       #4

    With the power on the power light is on.
    When I press the start button the light goes off immediately and the screen does not start.
    Do you get a "spot light" background picture?
      My Computers


  5. Posts : 7,127
    Windows 10 Pro 64 bit
       #5

    thomaseg1 said:
    Start with the basics
    Unplug and remove the battery
    Press the power button a few times to get rid leftover charge.
    Replace the battery and plug it back in.
    try restarting.
    Also try booting without the battery whilst plugged into the charger. Check/replace the CMOS button battery if you can access it. Load BIOS defaults, reboot then set your preferred BIOS settings.
      My Computers


  6. Posts : 19
    Linux, Windows 10, Android
    Thread Starter
       #6

    That is brilliant!

    Really appreciate the advise and will be going through the ideas.

    Cheers!
      My Computer


  7. Posts : 4,552
    Windows 11 Pro 64-bit
       #7

    There are quite a few different reasons why a laptop can have issues powering on. The most common would be a faulty DC Jack. Though other things like a faulty GPU, or incorrectly seated RAM, or a blown motherboard component, a bad battery, a damaged hard drive, a short in the ac adapter, or even liquid damage can as well. So you see; variety of different issues, and it will be up to you to do process of elimination testing to rule out all other possible problems and pinpoint the exact component causing the issue.

    If the laptop will power on when the power button/switch is pushed, it will even splash the BIOS screen (the screen showing the Laptops manufacturers logo), then shuts itself down. You will want to first check all the easiest things that you can, the easiest parts to access get looked at first.

    Start by removing the battery. Plug the AC Adapter in and try powering on… If the same, continue on.

    Next, remove the RAM cover on the underside of the laptop (some RAM slots are also situated under the keyboard on the top side of the Motherboard; you will determine the location and reseat both sticks. Then attempt to power back on after reseating the RAM. Reseating the RAM means that you remove both RAM sticks and place them back into the DIMM slots again to ensure they are in straight and not at an angle or slightly ajar.

    If you are still getting the same failure when powering on, then pull out both sticks of RAM again and just use one stick, placing it in DIMM 1 first, then checking Power, then trying just DIMM 2, then trying to power on, then taking the 2nd stick of RAM and doing the same thing… trying DIMM1 then DIMM2… That will either rule out the RAM as being the issue if nothing changes, or it will correct the issue, which would also tell you that you have a faulty DIMM slot if the laptop Runs and Powers on good with 1 missing RAM stick.


    Next you can move on to the Hard Drive by simply removing it. You want to remove/unplug it from the port and set it aside, then try powering up the laptop because if the hard drive had any issues with it that were stopping the laptop from powering on, removing the drive should bypass the issue and allow the laptop to turn on.

    Liquid damage to the internal components can cause power redirection where the contact pads join and when this occurs, it will tell the motherboard to shut down to prevent further damage.

    So you have now ruled out the Battery, the DC Jack, the RAM (memory) and the hard drive as being the causing issue. You have ruled out the DC Jack simply because it is powering on initially, then, shutting down. If the jack were faulty, you would get no power initially, or the shutdowns would be more sporadic and only occur when the cord or plug were moved slightly.

    Battery was ruled out simply for the fact that removing it didn’t change the fault.

    You will now have to move on to disassembling the laptop to begin troubleshooting and viewing all parts and components. While disassembling the laptop, you will be looking for certain things along the way as the root of the failure causing the laptop to not power up properly. You will basically be looking at everything. Something as simple as crossing pins inside the Ethernet/cat5 cable input port that are bent and touching one another, or possibly even crossed pins inside the USB port can cause the laptop to power on then shut down. So you will need to closely look at all parts and components now to determine where the failure has occurred. You will be looking for signs of liquid damage, looking for motherboard damage, looking for blown components.
      My Computer


 

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