Asus Zenbook UX433F UX433FA wifi up and down and chip hot

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  • corrize
    Badcaps Veteran
    • Apr 2021
    • 272
    • France

    #1

    Asus Zenbook UX433F UX433FA wifi up and down and chip hot

    Hello, on this laptop, the wifi can be up and stop working. I noticed it never works without battery, except long time after I remove the DC jack, and it stop to works (Bluetooth too). It diseapper to window and still 2 exclamation points in the device list.

    The wifi chip is hot when the laptop is on.

    I made a bios update but the same.

    That could be a thermal issue, I measured 2 caps shorted (0 Ohms) beside the chip (+3V_WLAN according the bordview), but not since (so I have doubt what I saw). After, I measured 50 Ohms when battery plugged and K Ohms unplugged. So that could be a thermal effect… or not ?

    I tryed to press on the wifi chip, no change, not yet tested with hot air but I will do.

    From your experience, what can be the issue pls ? A wifi chip dead or bad solder is a common issue ? Do you have replaced or reflow this king of chip successfully ?

    It is possible to remove the wifi shield ?
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  • lotas
    Badcaps Legend
    • Jan 2016
    • 4576
    • Russia

    #2
    Re: Asus Zenbook UX433F UX433FA wifi up and down and chip hot

    The chip itself dies, this is not uncommon.

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