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Problem with keyboard, tiny water spillage, big damage

Many buttons type 2 or more characters at once. They sometimes are not even next to each other. The water spillage was small, few drops, but the keyboard is dry now and not working properly :0(

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  • madzia_lena
    madzia_lena Jan 19, 2013

    I did it yesterday and I am not technically sound. I found this answer to someone else's similar problem: "Hi. The liquid has gotten between the membrane of the keyboard causing it to type other characters not related to the key which has been pressed. This means that you cannot fix the keyboard and you will have to replace the keyboard. You are very lucky that the liquid has not got to the major components and fried that laptop itself. For the time being you will be able to use the on-screen keyboard which you will find by clicking on the Start Menu>All Programs>Accessories>Ease of Access." I am now watching keyboard replacement videos but typing this reply on my malfunctioning keyboard took me ages...how to find on-screen keyboard in ubuntu?

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How to enable On-Screen Keyboard in Ubuntu 10.04 (Lucid Lynx)

Turning on the on-screen keyboard in Ubuntu Linux is a little more complicated than it should be. These tips should work for any version of Ubuntu within the last few years, but I'm using Ubuntu version 10.04 Lucid Lynx.

The simple way to enable the on-screen keyboard is to run the program from the Terminal:
$ onboard

However, if you cannot use the keyboard, you cannot type. On to method 2:

  • Go to System -> Preferences -> Assistive Technologies in the Ubuntu menu.
  • Select "Enable assistive technologies".
  • Click "Preferred Applications".
  • Under Mobility, select onBoard from the drop-down menu. Check "Run at start".
  • Log out and log back in, and the On Screen Keyboard is now enabled.

If you want to enable the on-screen keyboard at the login screen, please read my VMware Lucid Lynx guide, it's explained as part of that tutorial.

Posted on Jan 19, 2013

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Posted on Jan 02, 2017

  • 33 Answers

SOURCE: Acer Aspire 2930Z keyboard problem

borrow a different keyboard and see what happens if it still persist move the connection a different usb slot or find an old adapter and connect it to the actual plugin on the side if that doesn t work call the manufactor
and check warrenty

Posted on Aug 10, 2009

  • 1 Answer

SOURCE: acer one aspire netbook - green keyboard characters

go to control panel...
click clock,language and region...
then go to keyboard and language tab...
click change keyboards.....
on the general tab...
look for english(united states) US on the add/remove keyboard list..
then press apply then press ok...
now the last step is restart ur netbook...
gudluck!
i hope it helps u...

Posted on Apr 08, 2010

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The number keys to the right will not work, even after pressing number lock. suggestions?


Please open Device Manager and uninstall what is showing under "Keyboards". If you're unsure on how to perform these steps, follow this link:http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&dlc=en&docname=c03540049&lc=en&product=5450010&tmp...
Once you have uninstalled the keyboard driver, restart your notebook and it should automatically reinstall for you.
Let me know if this resolves the issue.


  • If the keyboard is not working in Windows, continue with these steps to uninstall and reinstall the keyboard software in Device Manager.
  • Click Start , then click Control Panel.
    Control Panel opens.
  • Click Hardware and Sound.
  • Click Device Manager under Devices and Printers.

    Device Manager opens.
  • Click View, and select Show Hidden Devices.
  • Double-click Keyboards, right-click the keyboard name, and then click the Uninstall button to remove the device from Windows.
  • Restart the computer.
  • The keyboard should now work correctly.
  • Your computer comes with several software programs that can test the keyboard for key or hardware failures. For more information, see the HP Support document Testing for Hardware Failures.
  • Notebook key presses are slow to respond
    If there is a short delay from the time a key is pressed to the time the character displays on the screen, the Filter Keys function might be activated. The Filter Keys function provides a greater range of key press options to fine-tune key delays and prevent inadvertent key presses. To disable Filter Keys and return to the default keyboard behavior, use the following steps:
    1. Click Start , and type keyboard in the Search box. Then select Change how your keyboard works under Control Panel.
    2. Remove the selection from Turn on Filter Keys. Then click Set up Filter Keys.
    3. Remove the check next to Turn on Filter Keys when SHIFT is pressed for eight seconds.
    4. Click Apply, click OK, and then close the Ease of Access Center.
      The keys should be more responsive.
    Pressing a notebook key once types several characters
    If two or more characters appear when pressing a key, use the following steps to adjust the key repeat delay:
    1. Click Start , and type keyboard in the Search box. Then click Keyboard under Control Panel.
      The Keyboard Properties page opens.
    2. Set the Repeat delay slider to Long. Click Apply, and then click OK.
    Notebook beeps while typing
    If the computer sometimes beeps while you are typing, Toggle Keys or Sticky Keys is active. Toggle Keys causes the computer to emit a beep when the Lock keys are pressed. Sticky Keys causes the computer to emit a beep when the Ctrl, Alt, Shift, or Lock key is pressed. Use the following steps to disable Sticky Keys and Toggle Keys:
    1. Click Start , and type keyboard in the Search box. Then click Change how your keyboard works under Control Panel.
    2. If selected, remove the check next to Turn on Sticky Keys. Then click Set up Sticky keys.
    3. Remove the check next to Turn on Sticky Keys when SHIFT is pressed five times.
    4. Click Apply, and then click OK to return to the Make the keyboard easier to use page.
    5. Remove the check next to Turn on Toggle Keys.
      If selected, remove the selection from Turn on Toggle Keys by holding down the NUM LOCK key for five seconds.
    6. Click Apply, click OK, and then close the Ease of Access Center.
      The beeps no longer sound.
    Wrong characters appear when typing, changing keyboard language, or Dvorak
    If the wrong characters appear when you are typing, or you are trying to use a different keyboard, use the following steps to synchronize Windows to the type of keyboard you are using:
    1. Click Start , and type region into the Search field. Click Region and Language from the search results.
    2. Click the Keyboards and Languages tab, and then click Change Keyboards.

      The Text Services and Input Languages page opens.
    3. Click Add.
    4. Select the keyboard you want to use, and click OK.
    5. From the Text Services and Input Languages page, select the new keyboard in the list and click Move up until it is first in the list. This makes it the default keyboard.
    6. Click OK. You can now use the new keyboard.
      If you find that the new keyboard service works correctly and you do not want to use the other keyboard, repeat these steps and Remove the keyboard service that you do not need.
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    Aug 23, 2015 | HP Computers & Internet

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    Plugged usb keyboard on laptop still get incorrect characters


    Test on another computer. Any damage/spillage/, is the keyboard old? Replace if the problem is present when used, or follows, on another computer.

    Nov 15, 2012 | Compaq Presario CQ62-112TU

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    My keyboard works except some keys are not working?


    Your question is not specific about specifically which keys work and which keys do not work and exactly what you mean by the keys not working, whether you mean there is no reaction at all when the relevant keys are pressed or whether it is just that incorrect characters result from pressing these keys.

    If incorrect characters result from pressing certain keys towards the right of the keyboard, use the Fn key, bottom left, pressed simultaneously with the Num Lock key, top right, to toggle 'on' or toggle 'off' the Alternative Symbol function of some of the multi-function keys.

    If there is no reaction at all when you press a significant number of keys, then there may have been liquid spillage damage to the NetBook. Liquid spillage damage can sometimes be resolved by partial disassembly of a NetBook/Notebook and wiping congealed liquids off with mild solvent or allowing internalized water to evaporate. This type of repair is best done by an experienced NetBook/Notebook repair center or technician.

    If only one or two or a small number of keys do not work, then it might be that particles of some or other substance, trapped underneath the keys might be interfering with the function of the non-functioning keys. This can sometimes be resolved simply by inverting and gently shaking the NetBookso that any trapped particles come loose and fall out. Occasionally, individual key caps have to be removed and replaced after the obstructing particle has been removed.

    If several keys are defective but the fault was not caused by liquid spillage or trapped particles, then the keyboard unit itself might be faulty and need to have its internal ribbon cable and cable connectors tested for cable damage or connector damage (typically either from liquid spillage, shock caused by dropping the computer or by previous unprofessional internal repairs). If no fault is found with the cable or the cable connectors, then the entire keyboard unit may have to be replaced.

    Nov 19, 2011 | Acer Aspire One Netbook 8.9" Notebook

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    My nb100 laptop. keyboard some keys not working.


    There are various ways of solving this issue. Some of them has these broad explanation.

    Problem #1 - My Laptop Keyboard Keys Not Working

    Sometimes you may find certain keys of your laptop keyboard not working properly. You type those keys but there is no output on the screen or you need to press these keys firmly to get a result. You face this problem if you accidentally spill any liquid substance on your keyboard, or due to dust accumulating on the inside of the keys, pressing certain keys really hard while playing games or even due to absence of lubrication. Therefore you are suppose to maintain your laptop keyboard by cleaning and lubricating it regularly.

    Troubleshooting Steps
    1. To start with, take out each key out from the laptop keyboard. Use a small screwdriver to carefully pry each key by making it loose. As they become loose, keys will simply pop off. Also, take out the rubber piece present under every key. Keep the keys and rubber pieces in different containers.
    2. Once you have removed all keys from the keyboard, you will have to clean the keyboard from the inside. Use cotton swabs or ear bubs and slightly dip them in water. Avoid getting them too moist, as excess water can damage the keyboard. Meticulously clean the whole keyboard using moist cotton swabs, laying extra emphasis on key spaces.
    3. Now, start cleaning keys you had earlier removed and kept in the container. Use foam rubber and lighter fluid to clean each key alone. This will help in removing any sticky substance present on keys. Apply any household cleaner on these keys and let them stay for about 15 minutes. After this, wash all the keys properly using hot water and let the keys dry completely.
    4. The small rubber pieces which you took out earlier and kept in the container have to be thoroughly rinsed in warm water, after you have sprayed a household cleaner on them. Soak these rubber pieces up in paper napkins so that they dry quickly.
    5. To lubricate the keys, place all keys (facing top-down) on a flat surface. Apply mild lubricant from all sides, on all keys and leave them to dry. Avoid applying too much lubricant instead go for a light coat.
    6. Similar to the manner in which you lubricated the keys, apply mild lubricant on the keyboard surface and let it dry.
    7. Once you have cleaned and lubricated all the parts, carefully reassemble the laptop keyboard. Begin with placing all rubber components on the keyboard. Next, fix all keys in their respective positions cautiously securing the wire in these keys. Use your finger and press down all keys, one at a time, firmly so that they fit properly in the slots. That is it.
    The complete process will take you a maximum of 2 hours. Cleaning and lubricating the laptop keyboard in the above prescribed manner once a year, can prevent many 'laptop keyboard not working' situations.

    Problem#2 - My Laptop Keyboard Types Wrong Characters

    When your laptop keyboard types wrong characters, it is because of a software problem and not a hardware one. If you accidentally press specific keys on your keyboard, it can activate a particular function responsible for the problem.

    Troubleshooting Steps
    1. Select the control panel option
    2. Click on ? 'Regional and Language Services' ? 'Languages' ? 'Details' ? 'Key Settings'
    3. Choose the option 'Switch Between Input Languages' and click on 'Change Key Sequence'
    4. Make sure that all the check boxes in the window are unchecked and repeat the same for 'Switch to..... (Keyboard Type)'
    5. Click ?'Ok' ? 'Ok' ? 'Apply' ? 'Ok'.
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    This is another laptop keyboard problem due to some software issue. It is possible you may have enabled a digital lock unknowingly.

    Troubleshooting Steps

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    I sometimes accidentally switch the keyboard to characters other than standard English. I don't even know how I do this. How do I switch back to the standard keyboard? If I switch the computer off, then...


    There should be a sequence that you need to press to change it from one type of keyboard characters to another. Look for a key that has the symbol of a keyboard on it. Most likely this is the key that is causing you the problems. Typically you have to press the Function key that is near the space bar as well as the key with the symbol on it to change it from one character set to the other. Evey laptop keyboard is alittle different than the next when it comes to which keys are "functions keys", so you will have to examine your keyboard to find the correct key on you laptop.

    Aug 05, 2010 | HP Compaq Presario CQ50-110US Laptop

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    My inspiron keps missing some characters when i type ...is very annoying whn typing in passwords as you cant see what has been missed....works better with some programs...was really bad with yahoo...


    Keyboard specially in laptops are connected to the main board via very tin flex wire underneath the keys, sometimes because of the frequent used and hard on pressing the keys, this flex can be easily damaged

    I suggest you bring it to the service center and have it check

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    1 Answer

    Keyboard not working due to a spillage over keys


    Very possibly, yes. Usually the internal parts of RF keyboards are heavily customized and a shop would need to keep tons of parts for every different keyboard under the sun.

    Also, replacement plus spares will often cost more than a new keyboard, so there's little advantage in repairing.

    Depending on the spillage, sometimes you can repair the keyboard. RF keyboards are much more difficult to fix because the spillage may have shorted circuits or oxidised contacts and tracks.

    But if you've nothing to lose, and especially if some keys are working (indicating that the transmitter electronics, the most delicate part, is still alive), then you can take apart the keyboard (screws underneath, and retainer clips too). Under the shell there are other screws holding the typing surface. Removing them, the back of the surface comes off, revealing a contact membrane and a wealth of printed curlicues.

    Wipe the curlicues with a lint-free cloth and alcohol to remove coffee and sugary liquids. Inspect carefully for oxidation and rust; sometimes you can remove it with a pencil rubber. Spray with a contact enhancer spray such as DeoxIT.

    The membrane is the tricky part: usually lukewarm water or alcohol will do, but it depends on the formulation of the contact pads (usually black round thingies). Sometimes you can see which pads have been affected by the spillage and clean them with a cotton swab.

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    Keyboard suddenly got weird


    A keyboard is nothing more than a collection of small switches under the keys. A liquid will short out between the contacts of the switches and is the same as hitting the key. There are still fluids inside they keyboard circuitry. By using it like this it can short out the keyboard and ruin it. It needs to be taken out and cleaned and dried throughly before it is ruined. (might already be ruined). You can usually find replacement keyboards on places like ebay.com

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    Laptop keyboard will sometimes type the wrong characters


    Try doing this::
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