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mikinana64
mikinana64
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Last Activity: 10-24-2025, 12:30 PM
Joined: 10-23-2025
Location: Jakarta
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  • mikinana64
    replied to Repair Fujitsu U939X/A BIOS
    Now i have the first problem just like before re-flasing the BIOS (which result 3s turn off)
    LED instantly turn off after 0.1s when plugged in power

    Tried verify EC chip memory and it passed, should i re-flash above BIOS again and wait while it took 4W?
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  • mikinana64
    replied to Repair Fujitsu U939X/A BIOS
    Thank you, it has different result from before.

    Now it's stuck at this three LED without blinking, capslock numlock and scroll lock is blinking.
    The side of CPU is warm, it took 4W from charger while in that state

    When i did force shutdown from button, and repluig the charger, only battery LED now turn on and no response from any button.
    EC chip is 0V now and 0W is taken from charger...
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  • mikinana64
    started a topic Repair Fujitsu U939X/A BIOS

    Repair Fujitsu U939X/A BIOS

    Hello, my laptop is now completely bricked after updated the fresh install Windows 10 Pro.
    It wont ever response to charger and LED completely off after 0.1s

    When i tried reflash my dumped with ME clean BIOS and EC extracted from Outimage.bin, LED is now working and battery can charging. But will hard reboot every 3s with WiFi blinking twice, and it can't even turn on.

    I tried download BIOS from their website, but the file .UPD (25,6 MB) size is exceed my splitted BIOS (24,0 MB)

    Here is my dump BIOS from 128Mb, 64Mb and 8Mb chip. Thank you
    ...
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  • Fujitsu U939X BIOS Recovery (EC Corrupt)

    I was clean install Windows 10 Pro without installing driver, because i believe windows will download itself.

    But 2 days later it hard bricked, just battery LED charge indicator when plugged in, no boot or even post. Unplugging the battery will result zero response, LED flicker 0.1s and then everything turned off, no response to any button. Main BIOS powered 3.3V but EC is 0V.

    So i though it just BIOS corrupted, and confirmed EC BIOS has been corrupted (First header is 55 AA 01 00 FF FF FF and the rest is always FF FF until offset 10000 with 00 00 blank and 11000 where...
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