What is this light at the front-righ of my Macbook pro?

I've had my macbook for 1.5 years and I never saw it go on. What is it?

From the MBP User Guide:

Similar Messages

  • HELP what is this little red light on the front of my phone?

    I know about the 3 sensors on the front of the phone on the top near the ear piece, and the one on the bottom on the right keeps showing a red light. It looks like a small red "C" with a little dot in it. When ever the phone becomes active the light comes on, and stays on for about 10 seconds after locking.
    I just today affixed a new screen protector (invisible shield) and just now noticed it happening for the first time. I do work in a dimly lit room but never had this happen before.
    What does this light mean and how do I stop it?

    Could be a sensor. Or light leaking into the sensor from the screen

  • My apple TV WHEN CONNECTED TO THE TV DISPLAYS A PICTURE OF THE BOX WITH A CABLE (USB) ATTACHED TO ITUNES SYMBOL.tHE WHITE LIGHT ON THE FRONT OF THE BOX IS FLASHING RAPIDLY. IS THIS WHAT IS DESCRIBED AS BEING BOXED? IS THE WAY TO FIX THIS TO RELOAD

    My Apple TV white light on the front of the box flashes continously.There is no response from the remote.
    On the TV there is a picture of an appleTV box with a USB cable and an I-Tunes logo.
    I do not have a micro usb cable.Is the only route to fixing this problem to download syestem software via my PC
    and I-Tunes?

    Welcome to the Apple Community.
    If your problem persists get yourself a micro USB cable (sold separately), you can restore your Apple TV from iTunes:
    Remove ALL cables from Apple TV. (if you don't you will not see Apple TV in the iTunes Source list)
    Connect the micro USB cable to the Apple TV and to your computer.
    Reconnect the power cable (only for Apple TV 3)
    Open iTunes.
    Select your Apple TV in the Devices list, and then click Restore.
    (You may already have a micro USB cable if you have a camera or other digital device)

  • There is a little red light that appears above my iphone 4 front facing camera/calling speaker.  what is this light?

    when i use a app on my phone, a little red light appears above the iphone 4's front camera  what is this light? and is it supposed to turn on?

    https://discussions.apple.com/thread/2805411?start=0&tstart=0
    Check that out. It seems to be the same thing

  • HT1551 The light on the front of the base is flashing rapidly but I cannot get the system to come on. Book says it is having problems but it does not say what type of problems or how to fix it. Any suggestions?

    The light on the front of my apple tv is flashing rapidly and it  won't send a signal to the TV.  The book says it is having trouble but does not say what it is or how to fix it.  My daughter was watching it last night and I think she turned the tv off without putting it to sleep.  Any suggestions?

    Sorry the news here is not good.  If the light just stays flashing then it is not able to succesfully startup the most basic part of the software.  The only option at this point is to find a USB cable that will let you plug ATV into a computer with iTunes and do a full restore of the system firmware.

  • What do the lights on the front indicate

    I have read and searched and can't find the answer to this. I have 5 different lights on the front of the laptop, 3 are white and don't blink, one was amber and didn't blink but it now white and does blink, the 5th is a solid amber.
    For no good reason, after the computer updated yesterday we lost our internet connection and it appeared the network card as well. This morning when I turned it on again, the computer logged on to the network no problem.  I don't understand this and wonder if the lights are supposed to tell me something that I don't know.
    I have a Satellite L755-S5214

    The Quick Tour Guide that came with your machine explains (with pictures) what all those lights (called System Indicator Lights) are for and different places in your User Guide indicates how they may vary under certain circumstances.
    Starting from the left:
    !.  AC Power light On when power plugged in.
    2. Computer On/Off light. Normally white when on but will blink orange if computer is in sleep mode.
    3.  Battery Light.  White when fully charged, User's Guide explains when not fully charged. See pages 47 and 48 of
         the User's Guide.
    4.  HDD Activity light.  Off when HDD idle, blinking when HDD active.
    5.  Memory Card Reader light (Only on certain models).
    6.  Wireless indicator light.  Orange when wireless on.  No light when wireless off.
    C.B.
    C.B.
    Toshiba Sat. C75D-B7260 Win 8.1 64 Bit--Toshiba Sat. L775D-S7132 Win 7 HP SP1 64 Bit and Win 10 PRO Technical Preview--Toshiba Sat. L305-S5921 Win Vista SP2 32 Bit

  • What is that little half-inch slot next to the power light in the front of a MacBook Pro for?

    What is that little half-inch slot next to the power light in the front of a MacBook Pro for? Anyone knows?

    Infrared port for the Remote Control. An extra item for you to buy.

  • Today my mac won't turn on at all...the light at the front is remaining on and at a constant brightness however the screen is still black! I'm not sure what to do next?

    today my mac won't turn on at all...the light at the front is remaining on and at a constant brightness however the screen is still black! I'm not sure what to do next?

    If you can log in blindly or using the flashlight method, it is possible your screen brightness somehow got set all the way to nothing.  I don't have my Macbook with me right now to test it out but I believe it may not be possible to adjust the brightness at the log-in screen so you have to be able to log in first (though I could be wrong on that).

  • TS1365 My Macbook Pro 17" 2.44ghz all of a sudden one day decided to not boot up. When the power button is pressed the sleep light in the front on the latch release turns on and there is a small running sound but it never boots up and the screen never lig

    My Macbook Pro 17" 2.44ghz all of a sudden one day decided to not boot up. When the power button is pressed the sleep light in the front on the latch release turns on and there is a small running sound but it never boots up and the screen never lights up. Anyone else have this problem? Any ideas?
    I'd love to repair it but not if it'll cost 500 bucks or more to replace the logicboard.
    I appreciate any help
    Michael

    Lao Bo,
    yes, you can locate and copy a file from your HD to a USB key using UNIX commands. If you know the exact name of the file which you’re trying to locate, try this:
    find / -iname filename -print
    This command will search your entire internal disk for the particular filename. If you know that it’s within a particular user account, then you can save search time with this variation:
    find /Users/username -iname filename -print
    Either variation of this command will print all files found which have the given filename. Presuming that you’re able to identify the correct file, you can copy it to a USB key using the command
    cp -p filename_returned_by_find /Volumes/USB_volume
    If you’re not sure which volume name your USB key has, this command will show you what the possibilities are:
    ls /Volumes
    Please let me know if you have any trouble with these commands.

  • How do you control LED lights on the front panel to identify the number of steps a stepper motor has taken?

    I am controlling a stepper motor that is coupled with a valve with four outlets (using an Arduino).  I've got a general understanding of how to control the motor, but I want LED lights on the front panel to light up that indicate which outlet the valve is currently at after the steps are taken.  The method I'm thinking about involves a lot of repetitive code.  I'm not that experienced with LabVIEW, I'm assuming I need some sort of loop structure but I don't know how to set it up in order to control the sequence of the LEDs.  I've attached my current block diagram for a visual aid if needed.
    Attachments:
    Capture.JPG ‏33 KB

    I was thinking about using the Stepper To Go and Stepper Write functions four separate times, using the same constants for the steps each time since the distance between each outlet is equivalent.  The only difference would be what's connected to the "steps remaining" node, which would be the function that activates one of the four LEDs (if that makes sense).  I was thinking that doing it this way would be a little counterintuitive since the only thing that needs to be changed is the LED indicator.

  • What does this  slot in front right side of macbook pro does

    what does this  slot in front right side of macbook pro does

    This:
    IR port for the Apple Remote.

  • When starting the computer I get the dong but then it stops with three loud beeps as the light in the front flashes in line with the beeps. The beeps repeat till switching off

    When starting the computer I get the dong but then it stops with three loud beeps as the light in the front flashes in line with the beeps. The beeps repeat till switching off

    Check out this Apple support article https://support.apple.com/kb/HT1547

  • What is this light?

    When I'm in the dark I have all these light patches around the corners/edges of my macbook pro. What is it?
    Here is a picture from my iPad. Picture is aweful but it shows light.

    Reclusive46 wrote:
    lol I have 3 stuck pixels aswell so with the combination of this I should be elibigble considering its brand new.
    Yikes. If it's under 14 days since you purchased it, you can still return it for refund or exchange.

  • My MAcBook will not boot up. I get A white screen along with the light on the front of the mac with a beeping.

    My MacBook will not boot up all I get is a white screen with the light on the front of the mac blinking and a beeping.

    Check this Apple support article https://support.apple.com/kb/HT1547

  • My Philips tv lost Connection to Apple TV 1. Generation After months of no problems: tv says no Videosignal found. Appletv Shows a yellow Blinksignal light on the Front??

    Hi all,
    My Philips tv lost Connection to Apple TV 1. Generation After months of no problems: tv says no Videosignal found. Appletv Shows a yellow Blinksignal light on the Front??
    Can anybody help?
    Tranks
    Rob

    Welcome to the Apple Community.
    Restart the Apple TV by removing ALL the cables for 30 seconds.
    If this doesn't help then I suspect your Apple TV has failed.

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