HP Zbook 15 G4 LA-E161P NO POWER

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  • madjid911
    Badcaps Veteran
    • Dec 2016
    • 387
    • France

    #1

    HP Zbook 15 G4 LA-E161P NO POWER

    I have an HP Zbook 15 G4 (LA-E161P motherboard) which does not start, there was a short on a capacitor supplied with 3V, I replaced it, no short now, I found the 3v voltage but it doesn't start.
    When I plug in the charger, the LEDs flash all the time, when I press the power button the LEDs stop flashing, I saw a post from someone who had the same problem and who had reprogrammed the bios and EC, I tried I reprogrammed everything but the result remains the same, I also changed the SIO chip if ever it was defective, and the 3V chip, but nothing changes.
    Do you have an idea ? THANK YOU
  • jasko_jacker
    Badcaps Legend
    • Oct 2014
    • 1137
    • italy

    #2
    It seems that the schematic and the boardview does not exist. How did you reprogram the system, does it have a dedicated chip or did you use a cable and a programmer? Are you sure you are using a working bios and ec firmware? Check all the soldering on the chip you replaced and see if you can extract the bios from the manufacturer's site

    Comment

    • madjid911
      Badcaps Veteran
      • Dec 2016
      • 387
      • France

      #3
      Originally posted by jasko_jacker
      It seems that the schematic and the boardview does not exist. How did you reprogram the system, does it have a dedicated chip or did you use a cable and a programmer? Are you sure you are using a working bios and ec firmware? Check all the soldering on the chip you replaced and see if you can extract the bios from the manufacturer's site
      I unsoldered the EC and MAIN eeprom chip, reprogrammed with xgecu t56, I am sure of my soldering, I checked everything, also the soldering of the micro controller. I took the EC and MAIN dumps from this site badcaps
      Last edited by SMDFlea; 12-19-2023, 05:14 PM. Reason: bios deleted,this isn`t the bios requests sub forum

      Comment

      • SMDFlea
        Super Moderator
        • Jan 2018
        • 20709
        • UK

        #4
        Originally posted by madjid911

        I unsoldered the EC and MAIN eeprom chip, reprogrammed with xgecu t56, I am sure of my soldering, I checked everything, also the soldering of the micro controller. I took the EC and MAIN dumps from this site badcaps
        Reminder: rules and organization of this section
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