1.    01 Aug 2015 #1
    Join Date : Jul 2015
    Hampshire, UK
    Posts : 10
    Windows 10 Home

    Logitech K270 wireless keyboard - can't type letters


    This is a wireless keyboard and mouse wirelessly connected via a Logitech USB unifying receiver.
    The mouse works fine, and strangely the hot keys on the keyboard (mail, calculator, sleep etc) work fine.
    However, after booting into W10 the normal keys on the keyboard have no effect at all, other than the hot keys.
    Taking the batteries out of the keyboard and reinserting doesn't help.
    Pulling the USB receiver and reinserting it fixes the problem and the keyboard behaves perfectly normally thereafter.

    I've updated the Logitech drivers to the latest.

    In the config dialog for the keyboard it has an option where you can see what device is active by moving the mouse or typing, and typing on the keyboard makes the activity marker come on, so the dialog is certainly getting something.

    So, the keyboard is connected, Device Manager shows everything fine, just no actual letter and function keys are seen by Windows. Apart from the hot keys...

    Keyboard definition is correct language and layout.

    What am I missing?
      My ComputerSystem Spec
  2.    01 Aug 2015 #2

    Quote Originally Posted by karma mechanic View Post
    This is a wireless keyboard and mouse wirelessly connected via a Logitech USB unifying receiver.
    The mouse works fine, and strangely the hot keys on the keyboard (mail, calculator, sleep etc) work fine.
    However, after booting into W10 the normal keys on the keyboard have no effect at all, other than the hot keys.
    Taking the batteries out of the keyboard and reinserting doesn't help.
    Pulling the USB receiver and reinserting it fixes the problem and the keyboard behaves perfectly normally thereafter.

    I've updated the Logitech drivers to the latest.

    In the config dialog for the keyboard it has an option where you can see what device is active by moving the mouse or typing, and typing on the keyboard makes the activity marker come on, so the dialog is certainly getting something.

    So, the keyboard is connected, Device Manager shows everything fine, just no actual letter and function keys are seen by Windows. Apart from the hot keys...

    Keyboard definition is correct language and layout.

    What am I missing?
    Hi there

    try the simplest thing first -- is the keyboard charged up - batteries OK (if you've got the solar keyboard will indicate GREEN if it's OK or Red if it isn't charged).

    Otherwise unplug the whole kybosh, re-boot your system and then plug in again and see if it works -- alternatively download the software again.

    BTW try plugging the keyboard into a USB port directly without using the Unifying piece. of hardware That will tell you if the keyboard works.

    The problem might be in the Unifying piece of software.

    Cheers
    jimbo
      My ComputerSystem Spec
  3.    01 Aug 2015 #3
    Join Date : Jul 2015
    Hampshire, UK
    Posts : 10
    Windows 10 Home
    Thread Starter

    Thanks jimbo - I've tried the following things:
    Pulling and re-inserting the USB dongle always fixes it. There is no lead so I can't try it directly. I've unpaired the device from the dongle and re-paired, hot keys (top row) work but no other keys.
    Batteries show full according to the software.

    I've just put the dongle into a USB3 socket and rebooted and it is fine, but using other USB2 sockets gives the original problem until reinserted.

    Strange that it is only non-hot keys that are ignored, keys like volume up/down work perfectly and still have the on-screen symbols when pressed, so it is (mostly) communicating fine.

    I'll just try a few more things but if leaving it in a USB3 socket works then I'll probably take the line of least resistance...

    **Edited to add**
    Booting without the dongle and then inserting it in a USB2 socket gave me a working keyboard.
    Re-booting with it still in USB2 then gave me a keyboard without letters until I pulled/reinserted the dongle. The mouse uses the same dongle and is always fine.

    Rebooting with it in a USB3 socket gives me a working keyboard every time. Very odd, I'll come back to this when I've got more time...
      My ComputerSystem Spec

 


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