HP Envy 17-da0013dx - no POST, 5 caps lock blinks then power off

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  • survivalbloke
    Badcaps Veteran
    • Aug 2021
    • 310
    • United States
    #1

    HP Envy 17-da0013dx - no POST, 5 caps lock blinks then power off

    I want to ask here before I tell my customer that their 1 year old laptop needs a board.

    Model Info:
    HP ENVY 17-da0013dx
    SN: CND4440NCZ
    Prod: 9S1R7UA#ABA
    Board: LA-N482P Rev: 1A

    Symptom: Pressing the power button, the power light comes on. A couple seconds later the caps key show 5 long blinks, then the power light goes out and the machine is off. During this time the current draw is ~1A. The fans will run, and the CPU gets warm.

    I've tried reseating RAM, using known-good RAM, power draining EC reset, manually flashing a clean BIOS image from HP. I understand this fault could be a RAM problem, a board problem, or a BIOS problem. Does anyone have thoughts or experience on this? It just seems outrageous to be a board fault with this being a 1 year old machine.
    Tags: None
    • khaahk
      Badcaps Veteran
      • Dec 2013
      • 825
      • Estonia
      #2
      "manually flashing a clean BIOS image from HP" - you mean by unpacking (copy) bios from hp bios update and write it with external programmer?

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