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  1. #1
    ROG Guru: Orange Belt Array navis995's Avatar
    Join Date
    Oct 2014
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    How to fix backlight that doesnt work after new bios/motherboard everything else fail

    I changed the motherboard, which subsequently changed the bios and the whole system. My backlight stopped working and I tried everything to get it working again.
    I had W10, I had W8.1. I tried all drivers combination, everything and nothing worked.

    Then one day I check on the net and find this video and it helped me! My f3 and f4 are switched and it doesnt work exactly as it did before but I still have 3 stages of lights and everything is back to working condition!

    https://www.youtube.com/watch?v=Wd33Z3PpUdQ

    Hope this video helps you too!
    Asus Rog G750JZ
    Screen: 1920x1080 17.3'
    CPU: Intel® Core™ i7-4700HQ (3.0Ghz @ -70mV)
    GPU: GeForce GTX 880M 4GB (OC +70Mhz Core, +400Mhz Memory @ 1.000V)
    RAM: Samsung 32GB 1600MHz
    Storage #1: Samsung Evo 840 250GB
    Storage #2: Samsung Evo 850 500GB
    Storage #3: Seagate Barracuda 2TB
    Storage #4: Samsung Evo 128GB MicroSD

  2. #2
    ROG Guru: Grand Master Array HiVizMan's Avatar
    Join Date
    Dec 2011
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    Thank you for sharing your discovery of a fix.
    To help us help you - please provide as much information about your system and the problem as possible.

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