Question about Logitech diNovo LX300 Keyboard/Mouse

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F Lock I can't log into my computer because my Keyboard seems to be locked so I have to email from another computer. My F lock light is on on my mouse charger. And I sure that is why I can't type anything from my keyboard. How do I solve this problem, some of my work is saved on it and of course I need it A.S.A.P. HOpe you can help. Thank you!!!!

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Re: F Lock

The F lock button is normally on the top left of the keyboard next to the special buttons row I believe its the same colour as the body of the keyboard and not sticking out

Posted on Sep 29, 2007

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Usually there is a light that will light up on your keyboard when caps lock is activated. Press caps lock again to turn off the light and thus turn off caps lock.

Jun 01, 2011 | Logitech Wireless Access Duo Optical...

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Dell keyboard locked up

Dear Sir,

PLzz folow this step to unlock your keyboard

Step 1 Check to be sure your "Number Lock" or "Function Lock" keys aren't lit. These can lock out certain parts of your keyboard. If either of these is lit, press them to unlock the locked portion of your keyboard. These can be found at the top right on a laptop and between the number pad and main keys on a desktop keyboard.
  • Step 2 Save all open programs using your mouse. Use your mouse to restart your computer. This will only work if your computer isn't frozen. If your mouse doesn't move, press the power button on your Dell until the computer turns off. Press it again to restart. If the issue was lack of memory or a locked program, this will unlock your keyboard. Continue to Step 3 if the keyboard is still locked.
  • Step 3 Shut down your computer using your mouse or power button. Don't restart. Unplug your Dell.
  • Step 4 Remove the battery if you're using a laptop by turning the laptop over and sliding the battery release latch. Slide the battery out and replace after one minute.
    For desktops, disconnect the keyboard from the desktop. Reconnect after one or two minutes.
  • Step 5 Reconnect the power adapter or AC cord. Start your computer.
  • Step 6 If your keyboard is still locked on a Dell desktop, disconnect the keyboard. Restart your computer and reconnect the keyboard after the system boots. Allow your operating system to recognize and reinstall the keyboard

  • Thanks For Your Time.

    Apr 10, 2010 | Dell 0Y3740 Keyboard

    4 Answers

    We have a wireless keyboard and mouse and it seems that something between them and the computer is slow or off. we type and only a few letters appear..the mouse seems to be ok just kinda slow ofrom when...

    Most likely you need to re-sync the device

    1. Resynchronizing the keyboard and/or mouse causes the devices to reconnect to the receiver using new identification numbers. Use the following steps to resync the devices:
      NOTE: The following connection sequence must be completed within 60 seconds. If the sequence is not done in 60 seconds, start over.
      1. With the receiver plugged in, press and hold the Connect button on the receiver until the activity LED flashes.
        NOTE: Some HP computers have receivers built into the front of the computer; such as TouchSmart 700 Series PCs and Digital Entertainment Centers. Look for a small connect button built into the case. If you have a TouchSmart 500 or 800 Series PC, the receiver plugs into a USB port on the underside of the case and does not have a connect button - skip this step. Figure 4: An example of a receiver c01065862.jpg 1 - Connect button and LED activity light Figure 5: Another example of a receiver c00526313.jpg 1 - Connect button 2 - Num Lock LED 3 - Alpha Lock LED 4 - Scroll Lock LED 5 - Activity LED
      2. Press and hold the recessed connect button on the underside of the keyboard until the activity light on the receiver stops flashing. When you release the button, make sure it does not stick in the depressed position.
        NOTE: If problems persist after resetting AND there is another wireless keyboard or mouse near, use these steps again, holding down the keyboard or mouse button for ten seconds. Doing so may give the keyboard or mouse a new ID number in case the other keyboard or mouse was using the same number.
      3. Press the Connect button on the receiver again until the activity light flashes.
      4. Press and hold the recessed button on the underside of the mouse until the activity light on the receiver stops flashing. Make sure the connect button does not stick in the depressed position.
    2. If your mouse and keyboard have a USB receiver, unplug the USB receiver, wait 10 seconds, and then insert into another USB port - preferably into a USB port that is closer to the mouse and keyboard. For example, if the USB receiver was plugged into a USB port on the back of the computer, unplug it and plug it into a front USB port.

    Hope this helps!! Good luck!!

    Sep 17, 2009 | HP Wireless Optical Mouse

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    BLINKING Num Lock, Caps Lock & Scroll Lock

    Put the RAM back in or check the RAM in securely

    Apr 13, 2009 | E-Machines AAFQ50400000K0 Keyboard

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    Are there lights on keyboard to indicate cap lock, numbers lock,


    Jan 06, 2009 | Logitech Cordless Desktop MX3200...

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    Meaning of indicator lights on wireless receiver

    I concur 2/3's with yooperbud.

    1 = System is connected and working
    A = Cap locks On= Cap lock is on. Off = Cap lock is off.
    F = Function Key usage. On = I'm going to use the alternative fuctions of the F keys as programmed in the Keyboard settings. Off = Your using the standard features of the F keys.

    Dec 31, 2008 | Microsoft Wireless Optical Mouse USB...

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    Logitech keyboard F Lock works but nothing else Connectivity?

    Reply to this issue from Logitech Tech Support:
    Thank you for contacting Logitech Technical Support. My name is Susan and I will be assisting you with Incident # xxxxxx-xxxxxx .

    I understand that the keys on your keyboard are not responding except the F lock key and the battery indicator key. Please correct me if I misunderstood you.

    It appears that your keyboard might be encrypted during first installation.

    To try and resolve this issue, I would like you to try and decrypt your keyboard. You can refer to the steps below on how to do this:

    1. Press Ctrl + Alt +F12 key on the keyboard.
    2. Press the Connect button on the receiver.
    3. Press the Connect button underneath the keyboard.
    4. Press the ESC key on the keyboard.

    Once you have performed the steps above, test the keyboard in simple text applications such as Notepad or MS words to verify if the problem persists.

    Additionally, you can try the following steps should the steps above was unable to resolve this incident:

    a. Press the Connect button on the receiver for 10 seconds.
    b. Wait for 20 seconds and then press the Connect button on the receiver again. Press the Connect button on the mouse.
    c. Insert fresh new batteries back into the keyboard.
    d. Press the Connect button on the receiver.
    e. Press the Connect button on the keyboard.

    This would help to isolate the cause of the incident that you are experiencing.

    If this does not address your question, please update this incident, describing the results after following my suggestions. Or, if you prefer, you can contact us directly by the phone numbers listed below.

    Thank you for choosing Logitech.


    Logitech Customer Support

    Dec 03, 2008 | Logitech Cordless Desktop EX110

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    Labtec ultra flat wireless desktop usb mouse & keyboard problems

    im having simular problems but manage ome times by tapping caps lock,scrol lock and num lock from the momment you pc starts till the caps lock majes a noise, then i know its working, if mouse starts mocing slow and not clicking it is your batteries, got me mad this has and dunno how i aint smashed it lol

    Jun 13, 2008 | Labtec 9674170403 Keyboard

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    How do I unlock the keyboard

    Hi There If youyr lights above the Num Lock Button are on then i would serggest you try unplugging your key board and restsrting your PC when the PC pings the replace your keyboard and check that the lights are working by pressing the Num Lock Button this should let you use the numbers hope this works Paddy

    Oct 06, 2007 | Logitech Cordless iTouch Keyboard/Cordless...

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