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 the 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 a liquid gets on it. I must say that the effectiveness of such repairs depends on the speed of response to the problem: the sooner you perform the actions described in the article, the better. On the other hand, cleaning and trying to wash the laptop keyboard are unsuccessful one way or another.
Those. trying to fix the keyboard makes some sense, and then how lucky. But we consider it our duty to warn users that most often non-professional repairs after filling with liquids end.
We fix the laptop keyboard after pouring liquid with our own hands
Incidentally, this article was written on a laptop that had about 0.5 cups of unsweetened tea in it. The laptop continues to work reliably to this day. The keyboard is fully operational after an accident a year ago two years ago.
So, what to do to avoid 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 liquid getting 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 freeze periodically. 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 on the control board
We sorted out the incentives for repairs and after the liquid hit.
I would like to warn you right away that some skill and experience in disassembling a laptop will be required from the user. If you have never disassembled a laptop before, there is a chance to spoil something, disable other modules, components, damage cables and connectors. Be careful!
How to try to fix the keyboard at home if it gets liquid
If you do everything quickly and correctly, the result will be above your expectations - the laptop will turn on again and work without problems. In any case, there is a chance to completely restore the laptop's performance.
In case of untimely washing of the keyboard and laptop motherboard, most likely, there will be a strong oxidation of the contacts and sticking of the keys. Perhaps the laptop motherboard will fail immediately, or over time due to corrosion.
Also, to carry out the entire cycle of work on washing the modules and components of a laptop, you can contact the masters of our service.
Laptop malfunctions are very different and in many ways similar to the breakdown 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 the keypad is out of order in a stationary computer, you can simply replace it without understanding the causes of the problem. In the case of portable technology, things are much more complicated, since the element is an integral part of a single design.
What to do if the keyboard does not work on a laptop
Often the keypad does not respond to pressing due to incorrect operation of the software. Why the keyboard does not work on a laptop often allows you to understand the entry into the BIOS of the device. If navigation through the menu items of the basic I / O system occurs, you should begin 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 laptop keyboard is functioning, 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 information input panel, 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 liquid spilled on it (water, coffee, tea). To quickly try to fix 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 operational actions will help slow down the process of oxidation of contacts, boards and microcircuits.
How to disassemble a laptop keyboard
Despite the fact that the portable computer seems to be monolithic, the keypad can be removed from it perfectly. If you do not know how to remove the keyboard from a 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 proceed to remove the keypad. To do this, you need to open the latches or unscrew the screws (it all depends on the method of fastening), after which the element can be removed from the housing. However, first you need to figure out how to disconnect the keyboard from the laptop. To do this, the decorative panel located above the information input device is removed, and the cable is turned off. It is connected to the motherboard socket with a special lock, which may have a different design in different models. By opening the lock, the cable can be disconnected from the motherboard.
How to properly clean your keyboard
Dust and dirt inside the keyboard of a laptop computer is a common phenomenon. This can significantly complicate typing and entering other information. Therefore, such an operation 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 letters and other symbols can be erased) or cleaning fluids based on it.
And how to clean the keyboard on a laptop if, due to 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 problematic 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, there is nothing difficult in this - 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 first photograph their location so that you do not make mistakes during assembly later. How to clean the buttons on a laptop when they are already removed is easy to guess. To do this, you can use ordinary warm water and cotton swabs. After cleaning, be sure to let the keys dry.
Restoring a keyboard cable on a laptop
The keypad is connected to the motherboard using a special cable. If it is incorrectly connected or defective, no information can be entered. How to remove the cable from the keyboard to check it?
On some devices, this flat wire can simply be pulled out with a little effort. In other models, to disconnect the cable, you need to open the lock-lock. Since it is often impossible to grab it with your fingers, you should use tweezers. If the element is loosely connected or connected backwards, it is not difficult to correct the situation.
If the tracks are broken, the keyboard cable 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 magnifying equipment and special tools. Then it is necessary to lay new tracks with conductive varnish. Restoration of the plume is a jeweler's job, and without proper qualifications it cannot be done.
Where to fix a laptop keyboard
Laptop keyboard repair is best left to professionals, as lack of experience can exacerbate the problem. Moreover, laptop keyboards in a reliable service center, you are guaranteed to get flawlessly functional equipment again 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 more prompt response to requests.
Question: Acer 5755g Some buttons do not work
Good afternoon I encountered the following problem today: after cleaning the laptop, some buttons on the keyboard stopped working (at first they were buttons: left shift, "from 1 to backspace except 1 and 3, and the buttons on the right panel did not work 7,4,2,3, / ,*,-,+"), after that I once again disassembled the laptop to make sure that everything was connected correctly, and that's how it turned out. Then I collected it, turned it on, but nothing changed. After that, I launched a Windows update, after which some more buttons stopped working (ts, y, k, 0, inter). Laptop Acer 5755g, Windows 7. I really hope for your help, since I can’t even put my mind into what could be the cause of this breakdown. Thank you in advance.
Answer: There is a possibility that when the keyboard cable was disconnected (hardly pulled out of the groove), the water-conducting substrate on the cable was damaged at the point of attachment to the connector. Try this solution to this problem: cut the edge of the keyboard cable at the attachment point (on the edge) by 2-3 millimeters and try to connect it again. I just cured the clave with some non-working buttons on the client after cleaning it in another service.
Question: Some buttons on the keyboard do not work
Hi all.
Now on the hands of an Acer V3-551 laptop.
Issue: Some keys on the keyboard do not work.
So, it all started with the fact that the laptop was not charging, and while disassembling, I accidentally broke the keyboard cable latches. As a result, I tried to fix the cable with manual means (adhesive tape, electrical tape, substrates). Unfortunately, some buttons no longer work. What can be done? How exactly to pinch the loop? Maybe the contact is bad. What do you advise?
P.S. I used the search engine, there are various tips .. but they don’t seem to fit.
Answer:
Message from All
Press the cable correctly and evenly.
I put a cardboard box from the packaging of some paper clips and voila it worked
Question: Hp e110sr keyboard keys not working
Hello, 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 flashed, the Ite 8528e cartoon changed, the tracks are called from the connector to the cartoon.
Answer: Yes, I took it from the same platform, but not much different model and tried an update from the official site for my model.
Question: Some buttons on the keyboard do not work after the 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 buttons, the right shift and the up and left arrows do not work. The service said to check the cable - it did not help. I ordered the original keyboard for replacement, but the problem remained. Reinstalling Windows didn't solve the problem either.
The most interesting thing is that when you press two shift "s (although the right one does not work separately) and QWER, the bottom line of letters is written, i.e. ZXCV.
Tell me please, what could be the problem? Could I mess up something in the service?
Notebook model HP pavilion dv6
Answer: must work
Question: Lenovo G560E (LA-7012P) All buttons on the keyboard do not work
I came from a laptop with a problem, all the buttons on the keyboard do not work, in particular Nuilok and Delite, and some more, the keyboard itself is working as I found out and threw the 2nd keyboard the same problem, threw 2 mikruhi ENE 1 from the same working laptop, the problem remained, please tell me where to dig
Answer: Measure the resistance of the contacts on the keyboard connector to ground.
Question: HP G62 - Several buttons do not work. Keyboard replacement doesn't help.
Good afternoon.
Several ~, 5, 6 and F2 buttons do not work on HP G62.
Replacing the keyboard did not solve the problem, and even more so downloading Wirth. OS too (check).
There was a similar problem on the old Asus, a friend repaired it and returned the chip with a laptop. However, I doubt that he changed it (there are reasons for that). Maybe someone faced a similar problem? Thank you.
Added after 9 minutes
I will add that earlier, when this happened, I did preventive maintenance, then I collected a laptop, and the problem disappeared for a while.
Answer:
Message from professor79
Try booting the OS with the keyboard disabled, open a text editor, then connect the keyboard and try to see if it works. If it does not help, most likely the multicontroller needs to be replaced.
Did as you said. Already I have no doubt myself ... Thank you.
Question: Acer 7551G (Wistron JE70-DN) (Replaced by YuM. Touchpad and keyboard not working.
Greetings.
There was no initialization, after replacing the UM (218-0697014 D1) initialization went on, Windows loaded, the touchpad and keyboard did not work.
The BIOS was flashed, the keyboard was checked, the NPCE781BA was replaced.
Where to dig, what signal can disable both the touchpad and the keyboard?
Answer: I transplanted UM to lead, the keyboard worked. I would never have thought, yes, live a century - learn a century.
Question: Acer Aspire 5738zg-433G25mi (jv50-mv m95 mb 48.4cg07.011) Additional volume buttons and buttons do not work
Good afternoon
The additional volume buttons and the "P" button do not work on my laptop.
Reinstalling drivers and software did nothing.
Cable and button board in working order.
On the keyboard, Fn + vol-/vol+ works.
The voltage on the PSCN connector is 3.45 (1pin and 6pin).
Please help me figure out what could be the problem?
Answer: slurry has flowed to you under the clave and on the board, open it, see if there are oxides.
under the P key there is a cable stretching with buttons.
possible fur damage.
Q: Numeric keypad not working
The digital part of the keyboard does not work after the repair, they changed the cartoon on the HP Pavilion 15-e082er laptop, after that it stopped responding. I put a sound signal that reacts to pressing the NumLock button, it works. Unchecked the mouse control options. Who knows what roots can be found in? Can a multicontroller from another laptop come up?
Answer: The keyboard operation settings are hardcoded in the firmware for the multicontroller, this firmware can be located in the main bios, or 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 the diagram for it, you can use it to understand where everything is on the board.
Question: Some keys do not work on an HP laptop
Not long ago, I dismantled an HP pavilion 15-n053sr laptop, I needed 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 on the same laptop works well. (that is, the problem is not in the clave). The connector is visually intact. What could be wrong, where to look?
Answer: Connector, roads, cartoon. It needs to be emphasized.)
In this article, we have to figure out an important question: why does the keyboard not print? This phenomenon is not as rare as we would like. But you shouldn't be afraid of it. Problems with are resolved without any problems. And only in some situations it is necessary to try hard to establish the functioning of the computer component. But for what reasons can the keyboard refuse to work? And what to do in this or that case?
Connector damage
The first case is not very common, but it does occur. Especially on older computers. For laptops, this layout is relevant only when it comes to a separately connected keyboard.
What is it about? Why doesn't the keyboard print? The problem may lie in the equipment connection connector. It sometimes breaks or gets damaged. In this scenario, the keyboard cannot be connected. If you are using an older model (PS/2 jack), it is advisable to change the hardware to USB. Or connect the device to another connector. You can also try to repair the nests. But this technique will not give a long guarantee of the operation of the device.
Drivers
Why doesn't the keyboard print? The next, already more common reason is the lack of drivers for Especially when it comes to multifunctional, with a large number of additional buttons. If the device refused to work, it is recommended that you first reinstall the drivers for it. Or update them.
Typically, keyboards come with a CD with the appropriate software. Further And if the reason lay precisely in the drivers, then everything starts to work. You can optionally turn off and on the device after logging into the operating system. But not everything is always as simple as it seems. After all, a computer is a device that can present a variety of surprises. And it's not always easy to fix them. So what other scenarios can be identified?
blockage
Why doesn't the keyboard print? This question sooner or later begins to worry almost every user. This is especially true for those who do not monitor the computer and its components at all. Keyboard not typing some letters? What to do? If we are talking about a device that has been working properly for at least a month, we can advise only one thing - to clean the component.
The keyboard is a device that can get clogged. Dust, food debris, crumbs - all this remains between the buttons. And we are talking about laptops and desktop computers. Therefore, all keyboards need to be cleaned from time to time. At least once a year. Or as needed. It is also recommended not to eat in front of the monitor. This technique will allow you not to clog the connected device once again. By the way, this problem is the most common scenario.
Now it is clear why the keyboard does not print. Just make sure you don't clean it yourself. Especially when it comes to a novice user. And even more so, it is not recommended to clean the keyboard from the laptop yourself. It is better to take the input device to a service center. Keyboard cleaning services are offered almost everywhere. In just a few hours, you can fix the problem that overtook the user. After cleaning the keyboard will work in full force.
Permutation
But these are far from all scenarios. Sometimes it happens that the keyboard prints the wrong letters. And in this situation it is very difficult to find an explanation for what is happening. After all, the device actually works. Just not the way it should be. There is only one reason that letters print numbers or not what is needed. This is the wrong assembly of the device. If you disassemble the keyboard, you will notice that each button has its own mechanism. The computer receives a signal from a certain key and prints one or another character. For the convenience of the user, these mechanisms are signed in the form of buttons on the keyboard. If the latter are swapped, it looks like the device is printing the wrong characters.
Therefore, in this situation, there is only one solution - to correctly assemble the keyboard. That is, place the mechanisms under each key in the right order. It is very difficult to do this on your own. Therefore, it is best to take the gadget to a service center. If you don’t want to think again why the keyboard does not print, you should not wipe and wash this component on your own. Often the problem with the wrong arrangement of buttons happens precisely after self-cleaning. Not the most dangerous, but not too pleasant moment.
Incorrect assembly
Keyboard buttons not working? How to be? First, don't panic. Secondly, analyze your recent actions with this device. In most cases, the user himself becomes the culprit of problems with the components connected to the computer. What to do if If the user tried to figure out the device on his own, it is recommended to immediately take it to a service center.
The reason is the incorrect assembly of the input device. Most likely, when the user tried to assemble the keyboard, an important contact moved away somewhere. This is a common occurrence and should be kept in mind. You can fix this problem yourself. But users point out that the keyboard will not work in inept hands. Unless it is completely broken. And craftsmen usually manage to disassemble the device the first time, and assemble it so that it works fully and without interruption.
Marriage
What to do if the keyboard does not print? Much depends on the situation. If we are not talking about a new device, then the above scenarios may well be the reason for the failure of the component to work. But what about when the conversation is about a newly purchased keyboard? If all the drivers have been installed, the problem most likely has only one reason - marriage. And here only a complete replacement of the keyboard will help. It is recommended that you immediately contact the store where you purchased the device. There you can exchange. Otherwise, you will have to buy a new gadget.
Incompatibility
What to do if the keyboard does not work? You want to find out why the connected device refused to perform its functions. In fact, only in rare cases among users, the causes are serious incidents. Much more often, all problems can be solved independently.
Why doesn't the keyboard print? The whole point may be in the incompatibility of the device with the operating system. This problem has appeared recently. Most often, users who have Windows 10 encounter it. With this operating system, older models do not have a similar problem. Yes, the keyboard also has its minimum requirements. And you should pay attention to them. Because you will either have to change the device in the end, or reinstall the operating system to one compatible with the gadget.
Viruses
Keyboard buttons not working? Has this device stopped working at all? If all of the above cases do not fit, you can think of the last, rarest scenario - infection of the operating system. Viruses are the main enemies of the stable operation of computers. They can affect not only software, but also connected devices. For example, under their negative influence, the keyboard either does not print, or displays the wrong characters, or it puts down several letters / numbers at a time.
There are two ways out here: reinstalling the operating system from scratch or treating the computer from the corresponding infection. In the first case, you will have to completely format the hard drive, only then reinstall the OS. And the second option, as a rule, is not sufficiently effective. For this reason, it is recommended to save all data and reinstall the operating system on the computer. So the virus will 100% disappear.
Sometimes users encounter such a problem that part of the keyboard on their laptop does not work for them. In principle, it happens that the entire keyboard does not work at once, but then, most likely, it just needs to be replaced. But if only a part of the buttons ceases to function, everything is somewhat more complicated.
We will consider everything that can be done in this case on our own, without the involvement of specialists.
Simple ways to solve the problem
It is not always necessary to do something complicated in order to restore the functionality of a part of the keyboard. Often the problem is solved quite simply. So from the very beginning, do this:
1.Try pressing the Fn and Num Lock keys. It is possible that pressing one of them blocked some buttons on the keyboard.
2. Hold Fn and press Num Lock, then release both buttons. In some cases, this simple method allows you to start the full operation of the keyboard.
3. Take a brush and go over all the buttons with it. It is possible that some dust has accumulated under one of the buttons. If possible, take a vacuum cleaner as well. On the Internet you can find special vacuum cleaners for small keyboards.
Keyboard vacuum cleaner
4. Restart your computer. In some cases, there may be some minor bug in the system that prevents certain buttons from working.
In most cases, the problem will be minor and can be fixed with one of these steps. If nothing works, go to the next step.
Fixing a software bug
It is possible that the problem is in the incorrect operation of some programs or services. To check this option and fix the problem, you must do the following:
1. Boot from safe mode without drivers. To do this, restart your computer and immediately start pressing the F8 button. Select "Safe Mode" from the boot options.
Note: Depending on the system configuration, the button for selecting the download mode may differ. So try using all the buttons from F1 to F12 if pressing F8 doesn't help. As a result, a window similar to the one shown in Figure 2 should appear.
System Boot Mode Options
2. Try to create some kind of document and use all the buttons from the keyboard. You need to check not only those buttons that previously refused to work, but also all the others! If it is really a software failure, the set of non-working keys may change with each new start.
So, if all the buttons work well, then the problem is really in the operating system. The most likely solution to the problem lies in updating the drivers. It's best to do it the standard way:
- open the "Start" menu (Windows), then "Control Panel", find "Device Manager" there;
Device Manager in Control Panel
- open the "Keyboards" item;
- usually there is only one keyboard, right-click on it and select "Update drivers ..." (if there are several keyboards, which is very unlikely, do the same with all);
- select the item "Automatic search ...";
- wait until the drivers are found on the Internet, they will be installed automatically.
Updating drivers in the standard Windows way
You can also download and install the DriverPack Solution program. It allows you to scan your entire computer for the latest available drivers. If the keyboard has incorrect (roughly speaking "broken") or outdated drivers, you can easily update them. The use of this program is as follows:
- download the program (here is the link);
- install it and run it;
- an automatic scan will occur, after which just click on the "Update all" button.
Driver Pack Solution window
Scan the system with your antivirus and remove any viruses found. You can also use special utilities for this, such as Kaspersky Virus Removal Tool or Malwarebytes Anti-Malware Free.
If updating and scanning your drivers doesn't help, try rolling back your system to a point where everything was working fine.
To do this, you need to do this:
- open the "Start" menu, then "All Programs", "Accessories";
- then go to the “System Tools” section and click on the “System Restore” item;
System Restore item in the Start menu
- in the window that opens, click "Next";
- then select the desired restore point, and they are sorted here by date and time (you need to choose the one that most closely matches the time when everything was fine);
Selecting a restore point for system rollback
- click "Next" and then "Finish".
In principle, you can also reinstall the drivers and roll back the system in cases where the keyboard also does not work correctly in safe mode. But in this case, the likelihood that it will help is very small. Most likely, the problem is already mechanical, not software, and it needs to be solved by physical intervention in the computer device.
Fixing a physical glitch
In this case, you will have to disassemble the keyboard and gradually look at what could have failed there. To do this, follow these steps (it is very important to follow exactly this order in which all actions will be listed below):
1. Turn off the laptop and remove the battery from it.
2. Take a flathead screwdriver and carefully pry out all the latches on the plate that holds the keyboard. If you do not see any latches on your laptop, you should pick up the instructions and read what is written there about the keyboard device and how it is removed. In any case, some attachment mechanisms must be present.
The process of opening the latches of the keyboard plate
The keyboard plate is attached to the laptop itself with a cable. You will see it right away.
3. So, if there are obvious damages on it, you just need to remove the cable and replace it with a new one. To do this, take an old cable, go to the nearest electronics store and buy the same one.
Keyboard cable
4. If the cable is not damaged, it still needs to be removed. At the same time, the train cannot be taken for conductors in any case! You can take only those plastic parts with which it is attached to other parts of the laptop. For clarity, figure 10 shows those parts that can be taken and those that cannot be taken. True, keyboards usually use slightly different cables.
5. In the same place, under the keyboard plate, you can find the microcontroller. Its necessary dry and try to draw out the dust with a vacuum cleaner.
It is quite difficult to explain how to find this very microcontroller. To put it simply, this is exactly the device to which the cable is attached. Just in case, when removing the keyboard, go through all the controllers that you see. Nothing more can be done on your own without special knowledge. Again, if you see obvious damage on the microcontroller, it is better to replace it.
Laptop with keyboard removed
6. If everything is fine with the cable, you will have to disconnect the keys and clean them. Usually, the button can be removed in the standard way - pry with the same flat screwdriver. Start with problem buttons. If you see damage under them, replace the elements with which the button is attached to the laptop.
The process of removing buttons from the keyboard
7. Try using the keyboard again.
If the problem persists, remove all buttons and remove the aluminum plate that is under them. Usually she also has special mounts that are removed quite easily. But under it is hidden a polyethylene board with drawn tracks.
Inspect it for obvious damage - if there is, there are two options: draw new tracks or buy a new board. In any case, go over the board with a vacuum cleaner.
To check the integrity of the tracks, use the tester.
Checking the integrity of the tracks on the keyboard board with a tester
To draw tracks, use a kit for repairing car rear window heating filaments (that's what it's called).
If all else fails, your best bet is to send your computer in for repair.
The video below clearly shows the process of disassembling the laptop keyboard.
Part of the keyboard on a laptop does not work: what to do and how to fix it - a detailed guide
