Any user who likes to drink sweet tea or coffee while working on a laptop should understand that sooner or later the laptop and its keyboard will be filled with liquid that is in the mug, and something will have to be done about it.

We offer a simple recipe for repairing a keyboard after getting liquid on it. I must say that the effectiveness of such a repair depends on the speed of response to the problem: the sooner you perform the steps described in the article, the better. On the other hand, cleaning and trying to launder a laptop keyboard are unsuccessful in one way or another.
Those. it makes some sense to try to fix the keyboard, and then how lucky. But we consider it our duty to warn users that most often non-professional repairs after flooding with liquids ends.

We fix the laptop keyboard after filling it with liquid with our own hands

Incidentally, this article was written on a laptop with about 0.5 cups of unsweetened tea. The laptop continues to work reliably to this day. The keyboard was fully operational after an accident two years ago.

So what do you do to avoid the costly?

At the very beginning: "What will happen to the laptop if you do nothing and leave everything as it is after flooding?"

Possible consequences of spilling liquid on the keyboard:

• the keyboard will stop working completely;
• the keyboard will work partially. Several keys will not work, or the keys will "give" the wrong characters;
• the laptop will stop turning on due to a short circuit. This happens when liquid gets on the motherboard, power supply;
• some functions of the laptop will stop working: battery charging, the laptop will periodically freeze. There may be problems with the touchpad, RAM and other modules;
• loss of user data may occur due to hard disk failure due to liquid spillage on the control board

The incentives for repairs and after the ingress of liquid were sorted out.

Just want to warn that the user will need some skill and experience in disassembling a laptop. If you have never disassembled a laptop before, there is a possibility of spoiling something, disabling other modules, components, damaging cables and connectors. Be careful!

How to try to fix your keyboard at home if liquid gets on it

If you do everything quickly and correctly, the result will be higher than your expectations - the laptop will turn on again and will work without problems. In any case, there is a chance to fully restore the laptop to work.

In case of untimely cleaning of the keyboard and the motherboard of the laptop, it is likely that strong oxidation of the contacts and sticking of the keys will occur. It is possible that the laptop motherboard will fail immediately, or over time due to corrosion.

Also, for the entire cycle of cleaning the modules and components of the laptop, you can contact the masters of our service.

Question: Acer 5755g Some buttons do not work

Good day! I faced the following problem today: after cleaning the laptop, some buttons on the keyboard stopped working (at first these were the buttons: left shift, "from 1 to backspace except 1 and 3, and 7,4,2,3 did not work on the right panel of buttons, / , *, -, + "), after that I once again disassembled the laptop to make sure that everything is connected correctly, so it turned out. Then I collected it, turned it on, but nothing has changed. After that, I launched a Windows update, after which some more buttons (c, y, k, 0, inter) stopped working. Laptop Acer 5755g, Windows 7. I really hope for your help, because I can't even put my mind to what could be the reason for this breakdown. Thank you in advance.

Answer: There is a possibility that when the keyboard cable is disconnected (by hard pulling it out of the groove), the water-conducting substrate on the cable at the point of attachment to the connector is damaged. Try this solution to this problem: cut the edge of the keyboard cable at the attachment point (from the edge) by 2-3 millimeters and try to connect it again. I just cured Claudia with some non-working buttons on a client after cleaning in another service.

Question: Some buttons on the keyboard do not work

Hello everyone.

Now we are holding an Acer V3-551 laptop.

Problem: Some buttons on the keyboard don't work.

So, it all started with the fact that the laptop did not charge, and during parsing, I accidentally broke the latches of the keyboard cable. As a result, I tried to fix the train with manual means (scotch tape, electrical tape, substrates). Unfortunately, some buttons do not work now. What can you do about it? How to pinch the train exactly right? Maybe the contact is bad. What do you advise?

P.S. I used the search engine, there are various tips .. but it seems like they do not fit.

Answer:

Message from All

Press the train correctly and evenly.

I put a cardboard box from packing some paper clips and voila it worked

Question: Hp e110sr some keyboard keys not working

Hi, tell me where to dig?
Some keys on the keyboard do not work. (In win and under liveSD)
The keyboard has been replaced with a new one, there are fewer non-working keys, the rest are the same as on the old one.
The BIOS was stitched, the Ite 8528e cartoon changed, the tracks are ringing from the connector to the mult.

Answer: Yes, I took a different model from the same platform, but not much and tried an update from the official site for my model.

Question: Some buttons on the keyboard do not work after service

The service cleaned the laptop, replaced the thermal paste and installed a new fan. When I got it back, I noticed that the QWER UIOP, right shift and up and left arrows did not work. The service said to check the loop - it did not help. I ordered the original keyboard for a replacement, but the problem remained. Reinstalling Windows also didn't fix the problem.
The most interesting thing is that when you press two shifts (although the right one does not work separately) and QWER, the lower line of letters is written, i.e. ZXCV.
Please tell me what could be the problem? Could something in the service have been spoiled for me?
HP pavilion dv6 laptop model

Answer: must work

Question: Lenovo G560E (LA-7012P) All buttons on the keyboard do not work

I came with a laptop with a problem, all the buttons on the keyboard do not work, in particular Nuilok and Divite, and some more, the keyboard itself is working as I found out and threw the 2nd clave the same problem, tossed 2 ENE 1 mikruhi with the same working laptop, the problem remained, tell plis where to dig

Answer: Measure the resistance of the pins on the keyboard connector to ground.

Question: HP G62 - Multiple Buttons Not Working. Replacing the keyboard does not help

Good afternoon.
Several buttons ~, 5, 6 and F2 on HP G62 do not work.
Replacing the keyboard did not solve the problem, and even more so loading Wirth. OS too (check).
There was a similar problem on the old Asus, a friend repaired and returned the microcircuit with a laptop. However, I doubt he changed it (for good reason). Maybe someone faced a similar problem? Thanks.

Added after 9 minutes
I will add that before, when this happened, I did preventive maintenance, then put my laptop together, and the problem disappeared for a while.

Answer:

Message from profesor79

Try to boot the OS with the keyboard disabled, open a text editor, then connect the keyboard and try it. If it does not help, most likely a multicontroller for replacement.

Did as you said. I have no doubts myself ... Thank you.

Question: Acer 7551G (Wistron JE70-DN) (Replaced by YM. Touchpad and keyboard do not work.

Greetings.
There was no initialization, after replacing YM (218-0697014 D1), initialization went, Windows is loaded, the touchpad and keyboard do not work.
BIOS flashed, keyboard checked, NPCE781BA replaced.
Where to dig, what signal can disable both the touchpad and keyboard?

Answer: I transplanted YM to lead, the keyboard started working. I never would have thought, yes, live and learn.

Question: Acer Aspire 5738zg-433G25mi (jv50-mv m95 mb 48.4cg07.011) Additional volume buttons and buttons do not work

Good day!
The additional volume buttons and the "P" button do not work on my laptop.
Reinstalling drivers and programs did not give anything.
The loop and the button board are in working order.
On the keyboard, Fn + vol- / vol + works.
The voltage at the PSCN connector is 3.45 (1pin and 6pin).
Please help me figure out what could be the problem?

Answer: the slurry has leaked to you under the keyboard and on the board, open it and see if there are oxides.
under the P key is a train with buttons.
fur damage is not excluded.

Question: The numeric keypad does not work

The digital part of the keyboard does not work after repair, we changed the cartoon on the HP Pavilion 15-e082er laptop, after that it stopped responding. I put a sound signal in response to pressing the NumLock button, it works. Removed the check mark from the mouse control options. Who knows where to look for roots? Can a multicontroller from another laptop come up?

Answer: The keyboard settings are hardwired into the firmware for the multicontroller, this firmware can be located in the main bios, either in a separate memory for the multicontroller, or in the multicontroller itself, if it has its own memory. Look at the model of the motherboard, then find a diagram on it, it will be possible to understand where everything is on the board.

Question: Some keys do not work on an HP laptop

Not long ago I disassembled a laptop HP pavilion 15-n053sr it was necessary to change the hard drive. After assembly, I found that some keys on the laptop do not work (1st f I tab). The same keyboard works well on the same laptop. (that is, the problem is not in the keyboard). The plug is visually intact. What can be wrong where to look?

Answer: Connector, roads, mult. It should be emphasized))

In this article, we will consider the problems that occur with keyboards, their repair and restoration - there is a complete and best service manual on the Internet at the moment. The main focus is on laptop keyboard repair and refurbishment, but everything described below can be easily applied to desktop keyboards.

Everyone knows that in any electronic device, as a rule, mechanical parts fail. Laptops are no exception - despite the fact that manufacturers around the world are constantly working to improve their reliability (and, consequently, service life), due to the small size of these devices, it is impossible to exclude the influence of various factors leading to the inoperability of certain nodes.

One such risk zone for laptops is the keyboard. The unfortunate keys are under unbearable stress from day to day. Every day, the keyboard is exposed not only to mechanical stress (blows to the keys during operation), but dust, crumbs, and the hair of dogs and cats get into it. And under the most unfavorable circumstances, it turns out to be filled with various kinds of liquids. Naturally, from all this, the life of a laptop keyboard is extremely small.

Prophylaxis

Here are the main symptoms of a malfunctioning laptop keyboard:

• the keyboard has changed its color
• typing poorly, some keys do not work
• after pressing the spacebar or any other key, this key does not go back

In a number of these problems, only preventive work can be dispensed with, but this will be best done in a specialized service center. There are all the necessary tools, fluids and experience for this, tk. not skillful preventive actions can only worsen the current situation and often make the keyboard unrepairable.

The vast majority of laptops use a membrane keyboard. Conductors and pads are applied to a polymer film by vacuum deposition or chemical deposition. To increase the mechanical strength, the contact pads can additionally be covered with a graphitized layer. Unfortunately, each manufacturer of portable computers develops its own, original topography of the membrane keyboard layout and it is impossible to replace it from one model to another.

The main cause of a malfunction in the keyboard is the ingress of various liquids (Coca-Cola and Champagne are the most caustic), as a result of which there is a short circuit, oxidation or corrosion of the conductive tracks applied to the films. Cases of breakage of the loop conductors and its breakage during independent attempts to disassemble the computer are still quite common. Almost any flooded keyboard can be repaired by repairing damaged tracks with conductive adhesive.

How is prevention carried out?

First, you need to remove the keyboard. In principle, this procedure cannot be called too complicated. As a rule, to remove the keyboard, the clamps in the upper part of the keyboard are bent or pressed with a flat screwdriver, after which the upper part is pushed in, pulled up and away from itself, leaving their lower grooves. The most important thing is to disconnect the flexible ribbon cable from the motherboard connector, it is very easy to damage the thin ribbon cable, but it is quite problematic to restore it. As a rule, the keyboard is connected to a flat connector, which consists of a fixed part, in which the ribbon cable is installed, and a lock-seal plate.

Only after removing the keyboard, you can determine the scale of the disaster, and understand whether it is possible to do with just prophylaxis or have to carry out repairs, and in the most unfavorable situation - put a new keyboard.

In the case of maintenance work, the dirt and dust between the keys is first removed. For this, there are special brushes, as well as cans with compressed air. Then you can start wiping the keys themselves and giving them their original shine. For this, there are special aerosols and liquids that remove dirt and give shine to the plastic without damaging it.

Often, you can find crumbs, sugar granules, food under sticky plates. It is better to try to remove them with a brush while sucking them out with a vacuum cleaner.

Repair

Here are a number of typical cases when ordinary maintenance work will no longer help and more complex repairs are required.

1. Keys are sticky or hard to press

In the case when individual keys "stick" or are pressed badly, unfortunately, simple prevention is indispensable. Such defects arise when moisture enters the mechanism, which over time mixes with dust and "cements" the movable part of the keyboard. To get rid of the dirt, poorly functioning keys are dismantled.

After that, the mechanism is washed in a warm solution of a special cleaning agent. In some cases, it turns out that the silicone "blotch" has rubbed off to holes, it is replaced with another.

2. Spilled liquid on laptop keyboard

Perhaps the biggest nuisance that can happen is liquid spilled on the laptop. If this happens, do not put the computer on the battery to dry it out, as this will not help. First, unplug the AC adapter and remove the battery, i.e. De-energize the device completely. Then get your laptop to a designated service center as soon as possible. If you are lucky, and the liquid does not have time to eat away everything inside, you will get off with preventive work of the second level (more serious). Otherwise, you are in danger of replacing or refurbishing your keyboard, and sometimes work on repairing your laptop's motherboard.

For the second level prophylaxis, it is necessary to dismantle the keyboard, rinse and dry thoroughly. Next, the film base is carefully removed from the keyboard, as a rule, it consists of several layers of film, on which very thin current-carrying paths are applied. It is important to note that when separating one film from another, it cannot be torn, as this is almost guaranteed to break the sprayed signal paths. Each of the films must be washed in cold water and dried thoroughly. This procedure requires not only a lot of time, but also a lot of experience, because the tracks are very thin and can easily be washed off when working with films. Only after final drying can it be assessed how badly the conductive tracks are damaged. If the tracks darkened and gaps appeared in them , then you can try to restore them with a special conductive varnish.

Unfortunately, after carrying out these actions, the keyboard is not always in working order, this is due both to the composition of the liquids that were poured onto the keyboard, and to how quickly the laptop arrived at the service center. If the preventive work of the second level did not help, there is only one thing left - replacing the keyboard with a new one.

3. Broken or lost keys

Another problem that laptop owners face is broken or missing keys. In some cases, you can use a "donor" to eliminate this breakdown. Unfortunately, the use of "donor" keys is not always possible. This is due, as well as with the fact that the keys are broken in different ways, for example, if the mount itself is broken, then nothing can be done here, except how to change the keyboard to a new one. So it is with the fact that all laptops are different and it is extremely problematic to find a "donor" with an absolutely identical keyboard. But in the meantime, such a possibility always remains.

If it was not possible to find a "donor", or its use is not possible, then there is only one thing left - replacing the keyboard with a new one.

Keyboard recovery

The vast majority of keyboards are made using film technology. Two films on which the contact pads and connecting conductors are applied by the method of vacuum deposition. Between them, an insulating gasket is made of the same thin film with holes in the places where the contact pads are located. Under the keys are rubber washers, which, when the button is pressed, squeeze the film sandwich and create electrical contact between certain contact pads. The conductive tracks on the films are made of aluminum. When moisture gets in, aluminum oxidizes very quickly and the track breaks. In this case, both individual keys and entire groups of buttons cease to work.

If the keyboard is flooded, the first step is to turn off the computer, disconnect the power, and remove the battery. Then we rinse the keyboard with cool water (not alcohol!), Dry it, put it back and check it. Do not rub the thin films of the flexible PCB when washing - you can easily permanently erase the conductive paths! Drying the keyboard should take at least a day. If, nevertheless, the keyboard partially or completely does not work, you will have to disassemble it and re-draw the rotten tracks. For work we need conductive paint, glue or varnish. This liquid does not have to be looked for in specialized stores; its analogue for repairing rear window heating threads can be bought at an auto parts store.

Most modern keyboards are disassembled starting with the keys. The first step is to make a photocopy or photograph of the keyboard. Itself the key, most often, consists of two parts: the elevator and the platform keys, but on some keyboards you can add a spring-loaded element here. A dental hook or a similarly shaped tool from engineering kits is best for removing keys. In principle, you can get by with a thin watch screwdriver. The key pad is latched to the lift, there are three to four connection points, it is worth noting that in the case of three - one, and four - two connections are movable. The elevator itself is an X-shaped structure, which on the bottom side is fixed to the metal key of the keyboard backing, and on the other - in the slots of the platform. We are primarily interested in the fixed connection, it is necessary to insert the hook between these fixed connections in the gap between the platform and the elevator.

Which side are the fixed fasteners ? You can already find out by removing at least one key, but most often this is the lower part of the key. It is better to start by lifting one key on one side, and then on the opposite side in order to find out which half of the elevator is fixed on the keyboard substrate, and which latches into the key grooves. Usually, the keys are removed by prying them from the top side.

The photographs show the elevator in the raised and lowered state. In the raised one, the attachment points to the platform are clearly visible (upper movable, lower fixed).

We send plastic parts and rubber washers to soak in a bowl of warm water, to which a little washing powder or dishwashing detergent has been added.

Next, you need to remove all the elevators. Since everything is already available to the eye, there should not be any difficulties, there are also movable, there are fixed mounts (in the photo the upper is movable, the lower ones are fixed), it is easier and faster to shoot, as a rule, from fixed ones, but there are exceptions. On more or less modern keyboards, elevators have more degrees of freedom, they can not only fold (rise and fall), but move relative to each other when folded ... In this case, it is easier to push the movable part of the elevator to the maximum (its fastening will go beyond the holding frame) and raise the entire elevator, after which it is already possible to release the stationary part from the "vice".

Having removed all the elevators, it will be possible to remove from the aluminum substrate a part of the keyboard with spring-loaded elements, and the polyethylene board with tracks painted on them. On fairly old keyboards, the parsing method may be slightly different; an intermediate stage of removing the edging with plastic will be added. In this case, you will need a hair dryer or a temperature controlled soldering iron. You need to melt the plastic on the back of the keyboard. When assembling, if it works out, then again melt the fasteners to get the hats, if not, then drop a quarter of a drop of supermoment or its analogues in the places of the fasteners. Such keyboards most often do not have a layer with spring-loaded elements; these elements are made in the form of separate rubber caps.

You cannot use a soldering iron to repair damaged tracks. The film on which they are applied melts from the touch of a heated soldering iron, and in order to solder the aluminum, you will have to use a special flux. Therefore, to repair the keyboard, we will put the soldering iron away and pay a visit to the nearest auto shop. There you will need to purchase an electrically conductive glue brand "Kontaktol" (Kontaktol-Auto, Kontaktol-Radio)... This glue is used for quick repair of heating threads of the rear window of a car and for fast tracing of tracks on small printed circuit boards. Other adhesives can be used, but they are more resistant.

Now let's move on to the main part of the keyboard - flex boards with drawn paths. There are three polyethylene parts (there are 4), two with tracks and one empty to provide a gap. Two parts with tracks are most often connected to each other along one of the edges and make up, as it were, one part, just this part folds in half (at the bend and the connecting tracks pass), but there are exceptions, for example, in the photographs there are three separate parts, there is simply contact pad for connection. As a rule, on old keyboards, these three parts are not glued together (there are two or three spot gluing points), but on more or less recent keyboards this can be a problem. You can't just disconnect it, just by pulling you can tear off the tracks at the intersection with the glue. Therefore, we arm ourselves with a hairdryer and a scalpel (or a clerical knife), and slowly, starting from the corner of the keyboard (speaking, the keyboard, I mean the plastic part), we begin to separate the layers. The glue is usually blue in color. Do not forget to warm up the glue well with a hair dryer before dividing any area. Do not rush - even if somewhere you cut off a track, it can then be restored, but if there are a lot of tracks torn off, it will be a big problem to restore them. However, modern keyboards with non-glued layers are often found.

So the layers are corroded. If you see the remnants of the liquid that was once spilled, it is better to rinse this part of the keyboard again and dry it again. If there is obvious corrosion and adhering organic matter, the layers are wiped off with a damp cloth for wiping LCD monitors. They are impregnated with a solution of isopropyl alcohol (but not with the alcohol itself - a very high concentration can corrode the spraying) and well clean all kinds of organic contamination.

Most often, damaged tracks are visible with the naked eye, but you should still check with a tester. Theoretically, all damaged areas need to be redrawn, but this is not always possible (the tracks are too close), and it is not always necessary, on a well-washed and dried keyboard, the corrosion process practically stops ... All tracks should have a resistance close to 0 Ohm, most often a few Ohms with a large distance of the measured points - not critical, but in theory, the tester should show a short circuit ... The damaged track may not ring at all or have a sufficiently large resistance, in this case it is necessary to draw the track over the rotted one. If the track has rotted down to the contact pad, then you will have to carefully clean the area directly next to the pad with a scalpel.

Practice has shown that all conductive adhesives differ in the specific linear resistance of the material. The glue introduces a resistance of 0.3 to 0.8 ohm per cm. The smaller the better.

We find the damaged conductor. Usually, the metal on the current-carrying track in this place turns black or dissolves completely. Using a pencil eraser, it is necessary to return the metallic sheen to the edges of the damaged area.

If such a damaged area is small, then you can immediately type a small drop of glue on the tip of a match or toothpick to restore the current path. But it's best to do everything carefully. Along the damaged track on both sides, I stick ordinary duct tape. You can also use scotch tape, but it tends to stick strongly to the film and is more difficult to remove later.

Glue is applied in a thin layer on the damaged area, so that the glue covers the undamaged areas of the contact track by 3-5 mm ... After pre-drying, a second layer of adhesive is applied for a few minutes.

The actual drawing process can be seen in the photographs. Remember to check the resistance after the glue has dried. The paths walking alongside are restored in turn: first we repair one path, then, after the glue on it has completely dried, we repair the path next to it.

After finishing the drawing, and drying new tracks (for different adhesives from 15 minutes to 1.5-2 hours), it is worth assembling the polyethylene part, laying it on an aluminum pallet and putting the part with spring-loaded elements on top. In this form, we carefully connect it, start the laptop and check if all the keys work. To check, you can use a regular notepad or a special Keyboard test program.

If all the keys work fine, you can turn off the laptop, disconnect the keyboard and finish assembling it. Perhaps, there is only one nuance left with the installation of the keys, more precisely with the key pads. After the installation of the elevators, platforms are placed, as a rule, the platform must be lowered onto the spring-loaded element in the center, and then press the platform strictly vertically down until it clicks.

Note: If, after repair, when the laptop is turned on, a key beeps and sticks, while pressing any other button removes the sticking, and all other keys work without problems, then resistance remained between some paths - apparently they hadn't been cleaned well. If, when you press one key, another symbol is displayed, then you have a jumper of current-carrying tracks. Examine how the tracks of the key that you pressed and the one whose symbol is displayed are connected.

Glue "Kontaktol" in St. Petersburg was found in the following stores:

1. Mikronika. Novocherkassky, 51. 444-04-88
2. Radio components. Tram pr., 12.377-17-25
3. Samodelkin tool. Tipanova, 5. 371-83-17; Glory, 52.453-03-44.
4. Base of Electronics. Bolshoy prospect, P.S., 100, letter A. 337-25-52

Partially used materials fromwww.azbooki.ru

Malfunctions of portable computers are very different and in many ways similar to breakdowns of stationary devices, but not always. When the keyboard does not work on a laptop and on a PC, the approaches to solving the problem are different. If in a stationary computer the keypad is out of order, it can be simply replaced without understanding the causes of the problem. In the case of portable equipment, things are much more complicated, since the element is an integral part of a single structure.

What to do if the keyboard does not work on a laptop

Often, the keypad does not respond to pressing due to incorrect software operation. Why the keyboard on a laptop does not work, it is often possible to understand the input into the device's BIOS. If you navigate through the menu items of the basic I / O system, you should start the next stage of testing.

We go into safe mode and test the device with a minimum set of services when the drivers are not involved. If the keypad on the laptop is functional, the problem lies in the incorrect operation of the drivers - they must be reinstalled.

But how to do this if the buttons on the laptop keyboard do not work? To do this, the operating system has an on-screen panel for entering information, and you can use it. The way out of the situation will also be to connect portable keys to the laptop.

Often, the keyboard on a laptop stops working due to spilled liquid (water, coffee, tea) on it. To quickly try to rectify the situation, you need to turn off the device, remove the battery and dry the equipment with a hairdryer. It is advisable to do this with cold air, if this option is present in the device. Such prompt actions will help slow down the oxidation process of contacts, boards and microcircuits.

How to disassemble laptop keyboard

Despite the fact that the laptop appears to be monolithic, the keypad can be easily removed from it. If you don't know how to remove the keyboard from your laptop to clean it, this guide will help you.

After disconnecting the equipment from the power supply and removing the battery from it, you can start removing the keypad. To do this, you need to open the latches or unscrew the screws (it all depends on the method of attachment), after which the element can be removed from the case. However, first you need to figure out how to disconnect the keyboard from the laptop. For this, the decorative panel located above the information input device is removed and the loop is disconnected. It is connected to the motherboard socket using a special lock, which may have a different design in different models. By opening the lock, the ribbon cable can be disconnected from the motherboard.

How to properly clean your keyboard

Dust and dirt inside the keypad of notebook computers is common. This can significantly complicate the typing of texts and the entry of other information. Therefore, an operation such as cleaning a laptop keyboard should be carried out as planned, especially since it is not so difficult to do this.

To remove dust from the surface, it is enough to use a soft brush designed for furniture, and to remove debris from under the keys, you should use a vacuum cleaner (preferably a car). Dirt is usually removed with isopropyl alcohol (never ethyl alcohol, otherwise you can erase letters and other symbols) or cleaning fluids based on it.

But how to clean the keyboard on a laptop if, due to the spilled liquid, its keys began to stick? To get rid of this inconvenience, the information input panel will have to be disassembled. Perhaps not completely, but the problem keys are a must. In order not to damage either them or the attachment point, you need to know how to remove the button carefully. In fact, this is not difficult - just pry one of the corners of the key with a screwdriver or a table knife (not sharp) and move to the opposite side at the same level. If you need to remove a large number of elements, it is better to photograph their location in advance, so as not to make mistakes during assembly later. It's easy to guess how to clean the buttons on a laptop when they are already removed. To do this, you can use ordinary warm water and cotton swabs. After cleaning, be sure to let the keys dry.

Recovering a keyboard loop on a laptop

The keypad is connected to the motherboard using a special ribbon cable. If it is incorrectly connected or faulty, information input is impossible. How to remove a ribbon cable from the keyboard in order to test it?

On some devices, this flat wire can simply be pulled out with a little force. In other models, to disconnect the ribbon, you need to open the locking catch. Since it is often impossible to grab it with your fingers, tweezers should be used. If the element is loosely connected or connected backwards, it is not difficult to rectify the situation.

In the event of a broken track, the keyboard loop needs to be repaired. This operation is quite time consuming, requiring skill, experience and patience. There are several ways to repair a laptop keyboard cable, but in each of them it is necessary to strip the insulation, and this must be done using a magnifying technique and special tools. Then you need to lay new tracks with conductive varnish. Restoring the plume is a jeweler's work, and without proper qualifications, you cannot cope with it.

Where to get your laptop keyboard fixed

It is best to leave your laptop keypad fix to a professional, as lack of experience can exacerbate the problem. Moreover, laptop keyboards in a reliable service center, you are guaranteed to receive again perfectly functional equipment for little money.

Specialists of specialized workshops, in addition to extensive experience, have at their disposal all the necessary tools and devices. In this case, you can fix the laptop keyboard very quickly. Orders, as a rule, are accepted on the website of the service center, which is very convenient and contributes to a faster response to requests.

Quite often, laptop owners find themselves in a situation when the data input device on their favorite device suddenly stops functioning. As a rule, this happens suddenly or after some manipulation of the software. The main keyboard breakdowns and methods of their elimination will be the topic of this publication.

Why the laptop keyboard can fail

Reason # 1

Carelessness or negligence of the owner, as a result of which it is flooded with liquid (tea, coffee, lemonade, strong and slightly diluted drinks). The keyboard on the laptop does not work, what should I do, disassemble and repair myself or carry it to a service center? These are the thoughts that haunt the unfortunate owner of portable equipment.

In fact, you should not panic and, if possible, you need to remove the keyboard and clean it as soon as possible, the process of which will be described below. If this process is delayed, then the complete failure of the device cannot be avoided: the conductive tracks will rot.

First aid to a laptop in this situation:

• Turn the device upside down.
• Disconnect the battery.

To prevent burnout of the controller and other electronic components of the laptop, do not turn on the device until after repair work.

Reason # 2

The keyboard does not work on a laptop after self-disassembly during cleaning. The thing is that when disconnecting the keyboard from the motherboard, beginners often make a mistake when they pull the connector by the ribbon cable, as a result of which there is a loss of contact of one of the conductors. In addition, when assembling the laptop, the flex cable may be kinked or not fully inserted into the contact group.

The laptop is especially troublesome when the connector with the ribbon cable is inserted upside down. It's tricky - but it happens sometimes with newbies.

The difficulty in solving such a problem lies in the fact that it is invisible to the “naked eye” and it is impossible to determine the degree of damage to the loop and the contact group without reverse dismantling.

Reason # 3

Incorrect software operation can cause. Especially if you've recently reinstalled drivers.

The first thing to do in such a situation is to establish if the device has ceased to function as a result of a hardware failure or software failure. For this:

• Restart your laptop and try to enter BIOS at the same time.
• If you managed to enter the BIOS, then the keyboard is working and you should look for the problem in the OS itself. If not, then dismantle the keyboard and determine the cause of the breakdown.

If you find out that everything works outside the operating system, then exit the BIOS and press F8 at boot to enter Safe Mode. Next, you should choose to enter in safe mode without drivers. If the keyboard works, then the problem is in the incorrectly installed drivers or in the absence of them. This can also happen, but, as a rule, after a virus attack. If the input device works in BIOS, but does not work in Safe Mode, then the problem is in the operating system.

The problem of reinstalling drivers with a non-working input device is solved by connecting the mouse to the USB connector and calling the on-screen keyboard. It is inconvenient and slow, but it helps to enter a request for new drivers into the search bar.

Many users do not know how to turn on the keyboard on a laptop, since it is extremely rare for anyone to use this function.

It's actually very simple: Start - Accessories - Accessibility - On-Screen Keyboard. All operations can be done with the mouse.

Reason # 4

Buttons on laptop keyboard do not work after cleaning keys and other parts. As a rule, in this case, only some of the buttons do not function.

The problem may be mechanical damage to the conductive tracks. In such a situation, there are three ways out: a service center and expensive repairs; complete replacement of the input device or self-restoration of the tracks using a special conductive glue.

How to clean a laptop keyboard

There are two main ways to clean input devices: shallow and full. With the surface method, with the help of a brush, debris and dust between the keys are removed, the dust that has not been swept away by the brush is drawn in with a vacuum cleaner, and the keys are wiped with special cleaning napkins.

A complete cleaning involves disassembling the entire input device. I would like to talk in more detail about this method of cleaning.

The first thing to do is to de-energize the laptop and remove the battery from it. Next, you need to dismantle the data input device. If you do not know how to remove the keyboard from the laptop, then repeat everything exactly as shown in our instructions.

Removing the keyboard

When disconnecting the loop, do not pull it by the conductors, hold it by the plastic connector.

After the data input device is dismantled, you can proceed to further disassembly, namely the removal of the keys.

Removing the keys

The easiest way to remove the button without damaging its attachment is to press down on the bottom of the button and insert a thin screwdriver under the top. By pulling the screwdriver up and holding the button, it snaps off quite simply.

Now that the keys are all removed, you can proceed directly to cleaning. To do this, you will need a soft, wide brush, and possibly special wet wipes or cleaning fluid.

Everything is quite simple: you need to remove all dirt and wipe the button mechanism with damp wipes to remove grease and stubborn dust.

After cleaning, replace the buttons and the keyboard itself.

Do not use acetone or other corrosive liquids to clean the keyboard. They can damage her circuitry. If special fluid is not available and you run out of cleaning wipes, you can use an aqueous solution of isopropyl alcohol.