Keyboard damage caused by dust into the keyboard / weather around the damp laptop.
The characteristics of keyboard malfunction are
- Keyboard can not be pushed
- Beep at startup windows
- Keyboard pressing itself
The Cause of Laptop Keyboard Damaged
- There is liquid spilled on the keyboard.
- Excessive dust in the keypad because it is rarely cleaned.
- The frequency of playing games using a certain button.
- The button rubber lubricant has dried out.
There is a missing file because the button del presses itself
Here 100percentesting will give sharing about how to change keyboard (lenovo) only with 5 minute time on your notebook.
Prepare the equipment
Laptop unit
Screwdrivers plus
New keyboard
To avoid electrical surplus off batrei and not in the charger plug
Remove the screws to open the back cover, usually the bolt is marked like a keyboard-shaped symbol.
Remove the cover by pulling down, then after the cover is released open the screw inside that has the keyboard sign. Be careful sometimes bolts have sealed paper seal.
Then remove the keyboard from the top position, remember to loose it slowly because there is a flexiblenya cord.
To remove the keyboard, watch for the flexible cable on the keyboard and then gently release it upward, by prying the socket cover up.
To install do with the opposite step of the above steps\
Replacing the Keyboard
For more-precise instructions on how to replace your particular laptop keyboard than the general steps provided here, check online. There's a small chance that your laptop is unique and has a very different replacement process from the standard one outlined here. Check with your laptop manufacturer and with the site where you bought the replacement keyboard to see whether they offer specific instructions for DIY repair. Some manufacturers provide service manuals with detailed instructions on a variety of servicing tasks; if not, try searching the Web for "how to replace keyboard" with your laptop's model number.
Now let's get started! Confirm that you purchased the appropriate replacement, by placing the new one on the laptop, and seeing if it appears to be the right shape and size. Next, gather your tools: a small Phillips screwdriver for removing the small screws, and a butter knife or other small, thin, flat tool for prying off any covers.
Make sure that the laptop is powered completely off: Unplug the power cord and take the battery out.
Examine the cover/trim piece that sits between the keyboard and the screen; it usually affords access to the keyboard. Check for and remove any screws that appear to be helping hold the cover piece on. Some pieces also cover the screen hinges, which may have small screws on their backs.
Before removing the cover, be aware that it may have a data cable on the back that's connected to the laptop. This cable is important and usually doesn't have much slack, so be very cautious when removing the trim piece that holds your laptop's keyboard in place. You don't want to rip the cable from the laptop and ruin the connector or the cable.
When the cover is loose, gently remove the cover/trim piece with your bare hands; if necessary, carefully use a butter knife or other thin flat tool to pry it up. The cover should snap off fairly easily with a small amount of force--don't use extreme force or you may break it. If it doesn't seem to be coming off, recheck for any remaining screws that may be holding it on--even underneath the laptop--and remove them.
Once you've removed the cover/trim piece, set it aside. If it's attached to the laptop via a data cable, carefully try to move it out of the way without damaging the cable. Then find and remove the screws holding the keyboard in place; there are usually two to five such screws, located along the top of the keyboard.
Before pulling the keyboard up, note that the back of the keyboard attaches to a data cable that in turn is connected to the laptop. This cable usually doesn't have much slack either, so be very careful when pulling it up. It is crucial to avoid ripping the cable from the laptop and ruining the connector.
Carefully pull the keyboard up (without ripping the data cable from the laptop) and unlatch the data cable connector, usually by flipping up the small latch on the connector. Next, remove the data cable and set the old keyboard aside.
Pick up your new keyboard, align it (without setting it down), and attach the data cable to the connector on the laptop, usually by inserting the flat cable as far as it will go and then flipping the small latch on the connector back down to grasp it. With the data cable connected, set the keyboard in place, being careful not to pull at or damage the cable in any way. Reinsert the screws to hold the keyboard down and reattach the cover/trim piece, which usually requires a little force to snap back into place. If you removed any screws from the cover earlier, reinsert those as well.
Once you're done with these steps, you can reinstall your battery and boot up the laptop. If everything went smoothly, you should have a perfectly working keyboard at a fraction of the cost of having a professional repair service do the work!