HP Envy X360 15-EW IPA52 LA-M021P

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  • motanya
    Senior Member
    • Nov 2021
    • 160
    • Kenya

    #1

    HP Envy X360 15-EW IPA52 LA-M021P

    HP Envy X360 15-EW IPA52 LA-M021P, this laptop was working fine but went off suddenly, on checking I found 5v usb SOT shorted to ground on removing it, the laptop started charging and coming on but has 5 blinks on keyboard no display, the processor is dead cold, processor coils have 10ohms meaning not shorted. Further interrogation I realized Realtek ALC3315 chip is overheating, can't find replacement for the chip at the moment(or the datasheet for it).
    Can the chip cause the issue of display?

    No schematics for this board is available, it is a 12th gen
    Attached Files
    Last edited by motanya; 10-03-2023, 06:03 AM.
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14147
    • Canada

    #2
    Re: HP Envy X360 15-EW IPA52 LA-M021P

    If it is overheating, take a pic of the part for the orientation of the replacement, flux and remove this component and test the logic board again.

    The shorted component could be causing other required power rails to power up.

    Comment

    • motanya
      Senior Member
      • Nov 2021
      • 160
      • Kenya

      #3
      Re: HP Envy X360 15-EW IPA52 LA-M021P

      Removed it, powers on no display still

      Comment

      • motanya
        Senior Member
        • Nov 2021
        • 160
        • Kenya

        #4
        Re: HP Envy X360 15-EW IPA52 LA-M021P

        I ended buying the overheating chip, new one does not overheat anymore but the cpu still remains cold. As shown in the pictures below the component highlighted has 3v on one side and 0v on the other side if i short it to have 3v on both sides the laptop draws around 500mA cpu starts heating but goes of after 5seconds.

        What might be the problem with this one, can someone help identify the chip labeled BL151, is there an equivalent? Thank you.
        Attached Files

        Comment

        • motanya
          Senior Member
          • Nov 2021
          • 160
          • Kenya

          #5
          Re: HP Envy X360 15-EW IPA52 LA-M021P

          Originally posted by motanya
          I ended buying the overheating chip, new one does not overheat anymore but the cpu still remains cold. As shown in the pictures below the component highlighted has 3v on one side and 0v on the other side if i short it to have 3v on both sides the laptop draws around 500mA cpu starts heating but goes of after 5seconds.

          What might be the problem with this one, can someone help identify the chip labeled BL151, is there an equivalent? Thank you.
          Anyone who can help

          Comment

          • Sephir0th
            Badcaps Legend
            • Oct 2020
            • 1282
            • Germany

            #6
            Re: HP Envy X360 15-EW IPA52 LA-M021P

            A issue on the +5VALW usually ends up in multiple faulty components on this rail. So alone from this experience I would assume you missed a faulty component on this rail. Double-check and share resistance to GND reading.
            FairRepair on YouTube

            Comment

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