Question about Panasonic Toughbook CF-51 Notebook

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Panasonic CF-51 Toughbook Fn keys don't work at all

Does anyone have a clue as to how to repair (or whatever) the fn keys on the cf-51? Need help badly!

Posted by phase3studio on

  • 3 more comments 
  • phase3studio Apr 09, 2008

    I am still puzzled by the lack of information regarding this issue. Please help if you can. Thanks

  • phase3studio Apr 09, 2008

    The toughbook doesn't have any options in the bios for the function keys. Thanks for trying. I have downloaded ACPI drivers for it as well, but they didn't work either. Still looking. Thanks again.

  • Anonymous Sep 29, 2008

    none of my function keys work , brightness , volume etc any ideas please

  • Anonymous Mar 12, 2014

    Reinstalled Windows Xp Drivers don't seem to be working

  • Anonymous Mar 26, 2014

    I have a panasonic CF-51 bought second hand when I want to the bios with F2 they ask for a password we have tried many flashing programs bu we couldn't find the updated or the original flash file for the panasonic cf-51 on the net so we computer tech said his gonna try flashing the chips with his box all chips was cleared but only the main bios where the password is on won't flash plz help



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The following website contains the needed drivers:

Select your model of CF-51 Toughbook, but you MUST be specific. There are about nine variations of the CF-51 so you must use the right drivers.

Download the hkeyapp, hkeyset, and hotkey files and unpack all files. Use the default unpack locations. If you download the files for a laptop version that is not your own, when you try to run any of these files the computer will tell you that the file is not for your model. If the files successfully unpack then you know you have the right files.

For hkeyset and hkeyapp you must run the set-up applications in the unpacked folders.

Go to Control Panel>System>Hardware>Device Manager and go to Other Devices.

The Hotkeys will appear as an "Unknown Devices" so if there is more than one, right click and choose "Update Driver".

Select "Install driver from specific location" and direct it to "C:\util2\drivers\hotkey" folder.

The computer will find the file and install the driver after which point you must restart the computer.

Hope this helps. It took me a while to figure this stuff out on my own so hope it speeds up somebody else's attempt.


Posted on Dec 25, 2008



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DO you have all of the drivers installed ?? Check your computer device manager to see if any are not recognized.
Drivers on the 51s are very model number specific.
You are probably missing the hotkey driver !!
Ebays bammbammfran

Posted on Oct 05, 2008



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What do u mean repair;is it damaged or do u mean use/enable ,if so u can enable fn key in bios.
when u startup pc usually at bottom of screen you see which key to press to enter setup(bios)
its only shown for a short time .esc,f 2,f10,del etc...

Posted on Apr 09, 2008

  • Anonymous Apr 09, 2008

    there should be an option for change ctl for fn

  • Anonymous Apr 09, 2008

    run the hotkey settings.

    select start....all settings


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