No display on HP 17-cp0385nd

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  • JeroenRood
    New Member
    • Sep 2021
    • 3
    • Netherlands
    #1

    No display on HP 17-cp0385nd

    Hello,
    I need some assistance or advice.
    I have a laptop for repair with no display.
    HP 17-cp0385nd
    prod id : 538h5ea#abh
    motherboard : SPS:M51689-601 or 17n_AMD_FP6

    After powering on, the backlight is switched on and the CPU fan spins (variable speed), but nothing on the screen.

    If I reset the BIOS (remove batterypack), I get a message on the screen that the cmos was reset "Press Enter to continu."
    After pressing enter, I only get a blank screen again.

    I used the BIOS recovery (Win key + B) from a USB-stick and that works fine with everything on screen. BIOS is reflashed, latest version from HP.nl site.
    Laptop reboots after it's finished, the cmos was reset message appeared again, pressing enter to contine, and a blank screen again.

    Powerswitch led is on, capslock is not flashing.
    Removed all non essential components, fitted different memory, makes no difference.

    Does anyone have a suggestion, beside replacing the whole mainboard?

    Regards, Jeroen.
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