Backlight Refusing to Light Up

Discussion in 'MacBook Pro' started by Yimbie, Aug 18, 2010.

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  1. Yimbie, Aug 18, 2010

    Yimbie macrumors member

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    Aug 3, 2010
    #1
    When I try to turn up the backlight of my keyboard, it keeps giving me the "zero" symbol that looks like a O with a / through it. I have not spilled anything and haven't tampered with anything. Will it refuse to light up if I'm in a lit enough area?
     
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  2. celticpride678, Aug 18, 2010

    celticpride678 Guest

    celticpride678

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    #2
    Yes, if you're in a well-lit area, the backlight will not turn on.
     
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  3. TRUCRACKER, Aug 18, 2010

    TRUCRACKER macrumors 6502

    TRUCRACKER

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    #3
    Wow it must be REALLY well lit cause I've never seen that.
     
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  4. Yimbie, Aug 18, 2010

    Yimbie thread starter macrumors member

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    #4
    I was just sitting in my living room. No unusual bright lighting either. I guess regular daylight will prevent it.
     
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  5. MiBook84, Aug 19, 2010

    MiBook84 macrumors member

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    #5
    Its true, when the computer is in a bright room the lights will not turn on. This is probably because it is useless in daylight. It can almost not even be seen and if one was to use it on battery it would drain it quite fast.

    You can hold your hand over the ambient light sensor and activate the light by pushing the light up button (F6). The ambient light sensor is located a few millimeters to the left from the iSight camera on your MacBook Pro unibody.

    If you have a MacBook Pro that is not unibody there is two ambient light sensors, each one under the two speaker grills on the sides of the keyboard.
     
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  6. Moocher, Aug 19, 2010

    Moocher macrumors regular

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    #6
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