HI @ayoma, I've not been able to find a version of the X7831 which has a factory-installed backlit keyboard, I'm not sure if a backlit keyboard needs any additional hardware to power and / or controll the LEDs. If so, I doubt this extra hardware is available in the notebook. My guess is you wont be able to get it to function, but I dont have the possibility to test it myself, so I cant be sure.
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