DIY keyboard repair from laptop

To do this, first of all, you need to remove the keyboard from the laptop. It is fastened either with plastic latches along the perimeter of the keyboard or fixed with screws at the top. There are also combined options. If the keyboard is latched, then with the help of a small flat screwdriver they are sequentially squeezed out and at the same time with the help of a spatula screwdriver the keyboard is lifted. Sometimes the keyboard is fixed with screws under the top plate, then first remove the plate by gently squeezing it out.

Then we unscrew the screws, disconnect the ribbon cable and take out the keyboard. Next, we take out all the keys from the keyboard. We do this carefully without applying strong efforts so as not to break the plastic parts of the elevators and key mounts. To remove the key, we try to hook it with some thin instrument from different sides, and it can be easily detached and jumped out of the mount.

After dismantling the keys, you need to carefully pull out all fastening parts and elevators. Then the film matrix is ​​pulled out of the body. We wash the matrix and the keyboard case in warm soapy water, then rinse it in clean water and dry it for several hours. Then carefully peel the film matrix into three pieces. In case of severe contamination, rinse again in warm water and dry thoroughly. Using a magnifying glass, try to find damaged tracks, check suspicious places with a multimeter for resistance.

If the resistance is higher than units of Ohm, then you can try to restore the damaged conductors using a special conductive glue or conductive marker, applying it over the damaged areas. To do this, you can use an automotive conductive glue to restore heating of car windows, "Kontol-A", but it is more convenient to use a conductive marker, I ordered these from the Ebay auction.

After the procedure for restoring the tracks and checking with a multimeter, it is required to glue the matrix films and assemble the keyboard back.

Such repairs make sense if there are several minor damage to the tracks. If there are several damages, then the probability of success will be significantly lower.

After a small bronze statuette fell on the laptop keyboard, one of the buttons bounced, I decided not to mess with the service centers fighting in the tridoroga for their services, but to change the laptop button myself. After a short search, I found a place where I could order a new button from the keyboard for only 100 rubles and a diagram with service instructions to familiarize myself with the internal structure of my laptop.

Of the broken parts turned out to be a plastic "Lift" button, and I replaced it in accordance with the photographs:

The algorithm for replacing the "lift" of the button is as follows: first, we start it under a wide ledge, then slightly press on the lift and snap it under the hooks. After that, the key will first sit with the corners on the pins, and then the stands must be pressed until they click

There are two keyboards, filled with black and serviceable, but white (I could not buy black), so I decided to swap the contact pad.

We proceed to disassembly from the back side, for this we carefully snap out each keys that are held by the latches, then we take out the backing with rubber buttons from the board. Next, we hook and take out the substrate directly with graphites. It is glued on top. It is very easy to damage this film, so you must carefully peel it off. The keyboard cable is suitable for this film.

We need this film with a cable, because most likely the malfunction is in it, especially when the laptop is flooded. In addition, a film is glued from the bottom so that liquid and debris falling through the keyboard do not fall on the laptop board. The film must be peeled off a little because it will still come in handy. The frame is held on the keyboard by means of plastic welded rivets. We carefully cut them off with a scalpel, but at the same time we leave a little plastic so that you can melt them again with a soldering iron. Detach the backing, align the pins on the frame so that they fit into the holes on the keyboard. Otherwise, this frame will constantly flake off. Disassembly of another keyboard is carried out in the same way and the assembly is in reverse order, if there are incomprehensible moments, watch the video.

Contamination of the laptop keyboard is probably the most common problem with an ordinary user. Many people may accidentally spill various liquids on the keyboard: juices, tea, coffee, beer, and the like. Also, over time, crumbs, hair, pet hair and other small particles are stuffed under the keyboard buttons, which begin to interfere with the normal and comfortable operation of certain areas of the keyboard. Today we will look at practical examples of self-cleaning a laptop keyboard.

Author of the publication - = -
Heading: Computers, communications, Internet

Today I want to share with you my experience of self-repairing Acer laptop keyboard.

Such a need arose for me due to the fact that a number of keys in different rows, both alphabetic and numeric, stopped working for me. Most of all, I was afraid that the controller had suffered and I would not be able to repair the laptop keyboard, but I still hoped that the matter was in the keyboard itself

In this article, I will describe my actions, accompanying the text with photographs that I made specifically to make an informative, easy-to-understand article on repairing a laptop keyboard.

Since I know firsthand that the laptop keyboard is the most frequently worn-out part of the laptop. Perhaps there are people among the readers who are ready to repair the laptop keyboard on their own, which is why I decided to write this article in a style that is understandable for the reader.

First, you need to remove the keyboard, depending on the laptop model, the procedure will be different. Most often, the keyboard is screwed from the front panel, access to the bolts is usually covered by the front cover under the screen, which can be removed without much effort.

Next, you need to take a picture of the keyboard, this is necessary so that at the assembly stage, quickly and efficiently put all the keys where they stood, otherwise you risk spending a long time with the arrangement of the keys back.

The keyboard keys are fixed on the so-called elevators, which have four attachment points, both to the key and to the keyboard platform.

To remove the key, you need to carefully slip a small screwdriver or a suitable tool under it and make an effort by lifting the key as if up. In this case, the key is released from the elevator locks and removed.
Be extremely careful, the mechanism of both the elevator and the key fasteners is plastic and it will not be difficult to break it, especially if there is no experience

After you remove all the keys, you have to get the film out of the keyboard case and divide it into two parts.
The film is usually a book that unfolds and has a transition on one side. It is better to separate the film after pre-heating, for example with a hairdryer, since the parts are usually glued quite well

To restore damaged tracks, you need a special glue with high conductivity, ideally with a silver content, you can find such glue on the radio market or in specialized stores where he sells everything for the repair of equipment and electronics.The price is not expensive, it cost me only 100 rubles to buy glue with silver in the composition, Kontaktol

Next, using a multimeter, on the probes of which I soldered the needles, we look for damage and breaks, carefully piercing the tracks in order to make contact with the track. The tracks on the keyboard are covered with microfilm, so piercing with a stylus is indispensable

After you find the damaged parts of the track, all that remains is to clean these places and carefully draw the track with a silver Contactol and let it dry.

Basically everything. Putting it back together and rejoicing. The price of a keyboard for a laptop is on average 2,000 rubles, the repair cost me 100 rubles - the price of Kontaktol, there is even a lot of it left for the future, if that ...

The author is not responsible for the breakdown of your laptop, if you use this article

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Sometimes a situation arises when something falls on the laptop and the keys are damaged or flew out. Like in the picture below.

In this case, our task is to perform the correct laptop key repair on one's own. This procedure is quite simple, but without understanding how the keys on a laptop are arranged, you can easily aggravate the situation.

So let's take a look at the step-by-step repair of laptop keys. If a piece of a key has broken off, then it is better not to try to glue something and attach it all back. The buttons on any keyboard are subject to frequent exposure. This means that such a key will not last long.

Therefore, in order not to waste your energy and time, I recommend that you contact the nearest service center, where these buttons should be in bulk

Depending on the model, laptop button repair may differ. But you can see the approximate principle of fastening on latches and rockers that you will have below.

As you can see, the key on the keyboard is fixed by a special rocker (the ears of which you could see under the key). The rocker itself consists of several parts with a hinged principle of connection.

In the case when the rocker flew off along with the key, you will first need to return the rocker back and only then start repairing the laptop keys.

After successfully returning the rocker to its place, we take up the keys. Carefully put the projections on the rocker into the grooves of the lid.

After the ears have entered the grooves, fix the button with light pressure.

When repairing large laptop buttons, such as for example - "space"... You can see a metal stabilizer under the button. It is necessary for even keystroke.

This stabilizer is additionally attached to the keyboard lining. In this regard, the principle of securing will be slightly different. To start the end of the stabilizer, we start it into special holes.

Then we fix the bottom of the rocker in the grooves.

And without much effort we fix the button.

That's basically it. As you can see, the rehabilitation of laptop buttons is not such a difficult task.

Unfortunately, this article is not a step-by-step instruction on how to repair a flooded keyboard, since the process, firstly, is very individual and the result is highly dependent on skills and luck, and, secondly, this described case does not take into account many nuances that can significantly complicate this procedure (for example, breaking "live" tracks at the stage of pasting the films). Therefore, if you came to this link not with the aim of spending several hours of time experimenting, it is better not to waste extra time and immediately contact us in any way convenient for you.

Before that, you can read the article "Replacement (repair) of a laptop keyboard in Kiev", which will give you an understanding of typical keyboard malfunctions and the cost of repairing them. If you have problems with your keyboard (for example, you doused it with water, buttons do not work, etc.), and are determined to figure out how to repair it - read on.

Let's make a reservation right away that all the information provided is of a purely informative nature and cannot be regarded as technical documentation. The author of the material is not responsible for the possible negative consequences that may be caused by your actions. In addition, please note that any repairs not performed by an authorized service center will automatically remove your laptop from warranty service. Also, to repair a laptop keyboard with your own hands, you need to have a special tool and knowledge.

With this in mind, we strongly advise not to risk your laptop, but to seek help from our service center, whose specialists will diagnose, find out the reasons for the failure of the keyboard, quickly repair or replace it, depending on what is more economically feasible.

More detailed information on the repair of the keyboard can be found in the article "Replacement (repair) of the keyboard for a laptop". In addition, you can find out the cost of new keyboards in the "Keyboards for Notebooks" section.

Before you find out whether it is worth changing or repairing the keyboard, it is worth finding out the reasons for its failure.

Most often, the keyboard requires repair or replacement due to the spill of liquid on it, which gets inside the films and causes corrosion (decay) of the conductive paths inside the keyboard, followed by their opening or vice versa by closing.

In the first case, some button / buttons / row of buttons stop responding to pressing, in the second - the button / buttons are constantly pressed. There is an express method for repairing a flooded keyboard, which consists in rinsing it with distilled water in order to wash out the salts in the liquid with which the keyboard was flooded. The method is quite risky, since, firstly, the laptop must be disassembled on its own in order to remove the keyboard, and, secondly, it does not guarantee that after this procedure the consequences will not turn out to be more dire than before. After that, be sure to use a hair dryer to dry your hair, but do not forget that the temperature of the hot air in it is sufficient to melt the buttons. Then you need to give the keyboard the opportunity to finally get rid of moisture, leaving it to dry in the sun or wrapping it in a bag with rice, which is a good adsorbent of moisture.

If after this procedure the keyboard does not work, you need to disassemble the laptop keyboard and try to restore the tracks. To do this, you need a special conductive varnish or glue (you can use conductive glue to restore heating tracks for the rear windows of the car).

Getting started, first you need to figure out how to remove the keyboard on a laptop and pull out the keys. The key is a dual structure consisting of an elevator and a key pad (some models additionally have a spring-loaded element). It is convenient to reach the key with a dental hook or special tools similar in shape (a thin watch screwdriver is also suitable for this purpose). The elevator and the key pad are interconnected by latches having three or four connection points (in this case, respectively, one or two connections are movable).

Consider a fixed connection. In this case, the hook is placed between the fixed joints themselves in the groove between the platform and the lift. Typically, the fixed connections are at the bottom of the key. In the photographs, you can see the attachment points (upper movable, lower fixed), which are visible when the elevator is in the raised position. Also, for comparison, see what a lowered elevator looks like.

Remove all elevators, and, as a rule, it is more convenient to remove from fixed mounts (of course, there are exceptions). The photos show well where the connections are located, so this step shouldn't be a problem.

In some modern models of keyboards, elevators are more mobile: they can be raised, lowered, and also shifted relative to each other when folded. If you come across such a keyboard, then you need to do the following: pull out the movable part of the elevator to the limit (in this case, the connection point will go beyond the border of the holding frame), lift the elevator, disconnect the stationary part.

After you have separated all the elevators, you can start removing the part of the keyboard (along with the spring-loaded elements) and the polyethylene board with the tracks painted on them. These elements are located on a special aluminum base.

In the case of keyboard models with frames (frames), sometimes another method of disassembly can be used, which involves the process of removing the edging with plastic. To complete this step, you need a hair dryer or temperature controlled soldering iron to melt the plastic on the back of the keyboard. When the time comes to reassemble the entire structure, it will be necessary to melt the fasteners again, as an alternative, you can use "moment" glue or something similar. Keyboards, which have plastic edging, contain only rubber caps, which in this case play the role of spring-loaded elements. This can be seen quite clearly in the third photo from the top: there are no spring-loaded elements on the keys.

Having finished with the keys, we turn to the main element of the keyboard - plastic films with applied conductive tracks. There are usually two or three polyethylene parts with tracks and one blank (to provide a gap). Very often, parts with tracks have a line of contact along one of the edges and represent a single structure. At the same time, it can be folded in half, bending at the points of the connecting tracks. However, another situation can also be observed. So, in the photo you can see that all three parts are autonomous, but at the same time they have a contact pad for connection.

Very often, on older models of keyboards, the parts are not connected to each other, but only in a few places have spot gluing. In this regard, in comparison with them in modern keyboards in which the parts are glued together, the disassembly process is more difficult. So, if you pull on the parts, you can easily break the tracks at the points of their contact with the glue.

For this procedure to be successful, you will need a hair dryer and scalpel (utility knife). Warm up the glue well with a hairdryer (almost always the glue is blue), and then slowly begin to separate the layers of polyethylene parts (you need to start from the corner). It's best to take your time at this stage. If you break a lot of tracks, then it will be almost impossible to restore them (if you damage 1-2, then this is fixable).

After separating the layers, check that there are no residues of the spilled liquid anywhere (if found, rinse and dry again). You can almost always see tracks that have been damaged. However, it is still better to play it safe and check with a tester. In principle, the damaged parts of the track can be redrawn, but in practice this is not always feasible due to a number of reasons: a small distance between tracks, etc. As a rule, if you have thoroughly washed and dried all areas of the keyboard, then the oxidation and corrosion process stops.

Please note that the resistance of the tracks should have a value close to zero (the tester should ideally display "short circuit". Sometimes the device shows 1-2 Ohms, this is due to the large distance of the measured points from each other. The damaged track can also have high resistance or even “do not call.” In such a situation, we recommend to run the path over the destroyed one.

Sometimes it happens that the track rots right up to the contact pad. In this case, it is necessary to clean a small area close to the platform with a knife or scalpel. After all the tracks are drawn and the glue has dried (this will take about 1-1.5 hours), check its resistance with a tester.

The photographs clearly show the drawing process to make it easier for you to navigate.

Then assemble the polyethylene part to be placed on the aluminum backing. Lay the structure with spring elements on top. After that, we advise you to connect your laptop and check the keyboard (keys) are working. To do this, you can use a notepad or a special program: KeyboardTest (662.61 kilobytes)

If everything is in order and the keys are fully functional, then turn off the laptop to complete the entire assembly process. Pay attention to one more point related to the installation of the site. When you install the elevators, the platform must be lowered onto the spring element in the center, and then gently push vertically on it until it clicks.

P.S. Dear readers, the author who wrote this material has considered several types of fastening (photos were provided from the Internet), but he simply physically cannot remember all the laptop models and the nuances associated with them. In this regard, we do not guarantee with 100% probability that we will be able to answer all questions regarding the disassembly of the laptop. But still, if you specify the exact model of the laptop, and also formulate a correct and detailed question, then you will have a better chance of getting the most accurate and useful answer.

Thanks to your service! I found the coolest office that will help with the repair of individual parts of the keyboard. Now there will be no need to change the whole. Plus they have almost all laptop models.

Zababulen, thanks for your feedback! We can select buttons for almost every laptop. Or suggest replacing the entire keyboard if the metal mounts are broken on it.

Hello. I spilled some coffee on the keyboard (Asus K40AB) and now some keys do not work, can you please tell me if you can manually clean the plastic board or buy a new one and change it ?! Thank you. My email - s ****

Sergey, tapes for keyboards are not sold separately. If you flooded the keyboard and some buttons stopped working, there is a 99% chance that the keyboard needs to be replaced. It is fast, reliable and relatively inexpensive (297 UAH today + cost of work).Contact our managers or leave your phone number and you can find out all the information you are interested in.

Hello. There is a problem with the spacebar, it is slightly deformed from the factory, bent towards the board, and perhaps the central button under the key is in an almost pressed state. This is manifested when working as follows: the cursor itself begins to move to the right, and in all applications, temporarily solved the problem by placing a small sheet of paper folded in two in the center under the space key. What do you advise? In the warranty service, according to customer reviews, there are no normal specialists. Almaty city

Eduard, if you are determined to resolve this issue on your own, then for a start we would advise you to carefully remove the button and inspect it and the rubber caps under it. If the caps are damaged, replace them. If the button is bent, you can very carefully try to bend it by gently heating it with a hairdryer. But remember that too much temperature will instantly lead to the fact that it will curl up like a dry leaf. Well, in the end, find the donor keyboard for this button and replace it. All this requires certain skills and tools, so be careful and careful.

A very long time ago, the space bar was worn out to set it up, the nozzle could no longer and the loops themselves npklava broke. Used without plasmaski pressed on the rubber pad. Now it is torn and the whole keyboard has stopped working. Can I somehow change it?

Artem362846, the fact that the keyboard stopped working is clearly not connected with the torn rubber part of the button. Most likely, there was some liquid in the keyboard, which over time corroded the tracks or the absence of the space bar led to the fact that you damaged the films under it. In any case, with a 99% probability, the keyboard must now be changed entirely. Contact us in any way convenient for you and our manager will advise you on the price and availability of this keyboard.

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Laptop keyboard repair | Replacing laptop keys - Simple and uncomplicated do-it-yourself laptop repair

Replacing and repairing the keyboard of a laptop ASUS, ACER, Lenovo, HP, MSI, Samsung, Toshiba, PacardBell, SONY, Dell, Compaq, Fujitsu at the Service Center or with your own hands?

Laptop Repair :
SC Techno-Favorite:
Laptop keyboard replacement / repair:
There are several reasons why a laptop keyboard fails. Let's consider the most common reasons.

1) Most often, the keyboard breaks down if, as a result of careless actions of the user, liquid gets on it. As a rule, this happens when the owner of the laptop is drinking various drinks in the immediate vicinity. A large amount of moisture spilled will cause serious damage to the keyboard, which requires laptop repair or replacement of the keyboard.

2) Another common cause of breakdown is mechanical damage. The keyboard in a laptop is the primary input device. It is through her that a large amount of information comes from the user to the display. Because of this, heavy loads are obtained. Despite the fact that laptop manufacturers immediately create keyboards with heavy loads in mind, in some cases damage does occur. If this kind of breakdown occurs, then repairing the laptop keyboard is simply inevitable.

3) Another reason is the Russification of the keyboard. In this case, various stickers with Russian letters, engravings, or the keyboard are changed to the buttons. If a non-specialist does this, it can also lead to damage to the laptop.
It is worth noting that many laptop models have the same keyboard. Therefore, you should not worry about the possibility of replacement, with the exception of laptops where the keyboard is not removable and comes with the top cover of the laptop (Top case).

The process of replacing and repairing a keyboard on a laptop

Replacing the keyboard on a laptop is carried out as follows:

The first main point is to de-energize the equipment - the laptop must be turned off, the mains supply turned off and the battery turned off.
In most laptops, the keyboard is removed by snapping off the fasteners at the top or bottom of the keyboard (depending on the manufacturer).
Laptop keyboard cable Next, the keyboard rises and the cable is disconnected from the main board of the laptop, but some manufacturers fix the keyboard with screws, so you need to turn the laptop over and look at the bottom, as a rule, if there are screws fixing the keyboard, then there will be a marker next to the screw (K, keyboard icon , etc.) must be unscrewed.
Installing a new keyboard is carried out upside-down.

Keyboard repair is usually applicable in the following cases:

lost button,
the mount is broken,
the membrane of the button was ripped off.
Replacing and repairing a button on a laptop keyboard

Replacing the button / buttons of the laptop keyboard Replacing the button and the mount is not a difficult manipulation - you need to remove the adjacent button, look at the button mount and the main mount and install it in the same way. But there is also an L-shaped mount on the main (metal part of the keyboard) if it is broken, then it cannot be restored and you only need to replace the laptop keyboard completely.

The membrane is repaired as follows:

You need to take another keyboard (donor), remove the button and the plastic mount and cut off the rubber membrane,
gently apply glue to the lower edges (where the cut is) and install on the laptop keyboard that you are repairing,
then install the plastic mount,
and the last step is to install the button itself.

Video Laptop Keyboard Repair | Simple and uncomplicated do-it-yourself laptop repair from Live PC channel

Do-it-yourself laptop keyboard repair using the example of a Dell inspiron 3421 laptop or one of the tricks of computer services

Hello friends. From this article, you can gain invaluable experience and learn how not to fall for some of the tricks of the computer wizards. In general, I advise you to subscribe to the free newsletter of blog updates and you will always be aware of the release of new, always useful articles.

Today we are talking about a Dell Inspiron 3421 laptop that came to me for repair.

The reason for the request was that the laptop did not respond to keystrokes on the keyboard. And obviously no one will like this, right? The characteristics of this device are not of a high level, but it will still fit as an office unit:

٭Type: laptop;

٭Operating system: Linux;

٭Processor: Intel Celeron;

٭Processor frequency MHz): 1500;

٭Processor model: 887;

٭Number of processor cores: 1;

٭Memory capacity (MB): 2048;

٭Memory frequency (MHz): 1600;

٭Memory type: DDR3;

٭Screen size: 14 ″;

٭Screen resolution: 1366 × 768;

٭Screen backlight type: LED;

٭Video adapter: built-in;

٭Video adapter chipset: Intel HD Graphics 2000;

٭Optical drive: DVD-RW;

٭Hard disk capacity (GB): 500;

٭Hard disk type: HDD;

٭Rotation speed (rpm): 5400;

٭Network card: 10/100 Mbit / s;

٭Bluetooth: yes;

٭Wi-Fi: 802.11n;

٭3G modem: no;

٭Interfaces: USB 3. VGA (D-Sub), HDMI, microphone input, audio / headphone output, LAN (RJ-45);

٭Flash card reader: yes;

٭Positioning device: Touchpad;

٭Built-in microphone: yes;

٭Webcam: 1.0mpx;

٭Battery capacity (mAh): 2700;

٭Dimensions (LxWxT) mm: 346 × 25x245;

٭Weight (kg): 1.99;

Later it turned out that a couple of months ago, people threw a cup of coffee leftovers onto the keyboard. And, as usual, everyone remembers the most basic external factor characterizing the cause of the breakdown some time after the device was handed over for repair.It's good that I only got around to repairing the note at the moment I discovered this secret with liquid. Usually, after spilling liquid on the keyboard, it must be immediately removed from the laptop and the device must be rinsed and dried. Some laptop models have special drainage points, and due to this, the keyboard does not suffer, and most importantly, the liquid does not leak out to the chips.

If you suddenly spill liquid on the keyboard, then immediately remove it from the laptop. If this happened with a stationary computer, then it all depends on the interface for connecting the keyboard, read more about the interfaces in the article "Computer motherboard."

The USB keyboard must be disconnected immediately from the port. If it is a PS / 2 interface, then you must press the power button of the PC and hold it until it is turned off. In the first case, the liquid can lead to the closure of the "south bridge" through the USB port, and in the second to the burning of the PS / 2 port or its "controller". We rinse such a keyboard, and after drying it usually works no worse than a new one.

Read also:  DIY Audi a8 repair

Having received a laptop from a customer, I decided to make sure that there was a problem with my own hands.