All keys on laptop faulty. Cannot write one sentence without letters missing, including space-bar
Either the cable connecting the keyboard to the laptop's motherboard has come loose, or the keyboard itself is bad.
You don't give a brand or model so I can't be too specific, but it's usually not difficult to remove a laptop keyboard. On most models you need to remove the plastic hinge covers and trim strip along the top edge. Often these are one molded piece, but on some computers the hinge covers are separate pieces. Look for small screws that may hold the cover down on the back edge or possibly through from the bottom. After removing any screws, the plastic pieces snap off. Be careful not to break the strip or hold-down tabs. Just work slowly and carefully.
With the trim strip off you can see the top edge of the keyboard. On some computers there are 3 or 4 screws holding the keyboard down. Other models have screws that go through from the bottom, and these are often labeled with a K.
Once the keyboard is free, lift it carefully by the top edge and tip it toward you. You'll be able to see the cable that connects to the main board. Make sure it's firmly seated in its connector. Set the keyboard back into place (you don't need to worry about putting all the hardware back yet) and see if the trouble continues. If it's back to normal, put all the screws back in, snap the covers back on and you've fixed your laptop. Otherwise, check online (eBay's a good place) for a replacement keyboard. They are widely available now for most models, and the prices are usually reasonable. Plug the cable from the new keyboard into the motherboard connector and replaces all the other stuff.
It is possible, but not common, that the keyboard controller on the motherboard itself is bad. If that's the case, the only fix is to change the board. That's a job best left for a professional. Replacement boards are available, but can be costly, so if the board is the trouble it may be time to consider replacing the computer. But the keyboard is normally the culprit.
Good luck, and thanks for using Fixya. If this has helped you, please take a moment to give a thoughtful rating.
Oct 22, 2010 |