Let's look at popular problems and ways to solve them.
The keyboard on the laptop does not work due to a software failure:
Due to the installation of a program, the keyboard may not work. To solve the problem, do the following:
1. Restart your computer, during reboot click Del and go to BIOS.
2. If the keyboard does not work in the BIOS, then the problem is at the physical level - you need to disassemble the laptop and clean the keys. If all buttons work normally in the BIOS, go to step 3.
The keyboard on the laptop does not work due to oxidation of the cable wires.
1. Disassemble the laptop case and get to the cable (many laptop manufacturers on their official websites post a step-by-step manual for disassembling their laptop models, sometimes this is a matter of 3 minutes even for a beginner!)
2. Pull the cable out of the connector and carefully inspect for damage, oxidation, or short circuit. E
If everything looks normal, wipe the cable with a cotton swab and alcohol or a regular eraser. Put it back in its place.
3. Wait for the alcohol to dry, then reassemble the laptop and turn it on.
4. Test the keyboard.
The keyboard on the laptop does not work due to liquid.
1. If you spill liquid on your laptop, turn it off immediately, turn it over and try to remove the battery as soon as possible and shake out all the water from the buttons.
2. If possible, disassemble the case and dry everything thoroughly with a hairdryer (cold air) or by placing the laptop in a dry, warm place.
3. Don't rush to assemble your laptop - it may not work. Normal drying time can be up to one week. Be patient.
The keyboard on your laptop may not work due to physical damage.
1. If one or more buttons on the laptop do not work, this may be the result of physical damage to the keyboard.
2. The entire keyboard needs to be completely replaced. If you can change everything yourself, do it; if you can’t, take the laptop to a service center.
Dirt and dust are the main reasons why the keyboard does not work.
1. Disassemble the laptop, remove the keyboard.
2. Use a cotton swab with alcohol or an eraser to thoroughly clean problem areas and blockages.
3. Give the laptop a little time to dry, then reassemble it and try to start it.
The keyboard on the laptop does not work due to the motherboard
A problem with motherboard laptop can lead to the fact that the keyboard, USB ports, Wi-Fi and many other devices will not work normally.
Sometimes it happens that PC users are faced with the following situation: when they turn on the computer, the keyboard does not function. Everything seems to be connected, but the buttons do not respond to pressing. When the device is rebooted, the keyboard works, but only in the BIOS. As soon as the download starts, it turns off again and shows no signs of life. In addition, a warning may appear on the screen asking you to select safe mode, and simply pressing the F8 button does not produce any results.
The first thing that comes to mind is to replace the keyboard. However, there is no need to rush. If the problem is not in the part itself, then the new one will react in exactly the same way when loaded, or rather, not at all. So check other potential causes first.
It may not be the keyboard at all, but a tricky one. Windows setup. As a rule, most users today use USB devices; others are no longer produced. In this case, the problem is related to the BIOS disabling support for your keyboard when the system boots.
What went wrong and how to fix the situation?
Such troubles arise precisely because of an OS failure. When you turn on the computer, the system stops responding to the device that previously connected automatically, and as a result, the keyboard does not work. In other words, the operating system simply “does not see” the device.
But don't despair. The recipe for correcting the situation is much simpler than it might seem at first glance. You need to make sure that the keyboard is working and connected. Otherwise, everything that will be discussed further will not work. In this case, you will still have to look for a replacement. First, try reconnecting the keyboard to a different port. If it doesn't help, move on.
The next step is to enter the BIOS. To do this, hold down the Del, F1 or F2 key (on different devices The menu is entered using different buttons, most often Del). Hold down the desired key for a few seconds.
On the blue screen you need to find the menu item associated with our keyboard. It is usually called USB Keyboard Support, and on some models may be called Legacy USB Support. In this case, there will be a note next to the item indicating that the option is disabled. To activate the keyboard in the BIOS, just switch to Enabled mode. Don't forget to save your settings. To do this, press the F10 key and confirm changes made. Now restart your computer and check the result. The keyboard now works normally.
Hello everyone, dear friends. Quite recently, a strange situation occurred at my work, as it seemed to me. The keyboard just stopped working. Or rather, it didn’t completely stop. As it turned out, the keyboard only works in the BIOS, and upon further boot it simply stops responding to any presses.
And then an unpleasant situation occurred, or rather a failure. After the reboot, I had to select the boot mode, but I could not do anything, since none of the keys responded. First of all, I thought that it was the keyboard’s fault, after which I replaced it with a new one, but it turned out, but after I I installed another device, the situation did not change.
In general, I won’t bore you. Most likely you used a USB keyboard, since no one had such problems with PS/2. The thing is that your BIOS has disabled support for USB keyboards when booting Windows.
"How so? After all, everything worked before,” you say. Yes, indeed, everything could work for you, and you could not notice anything, because when loading operating system it will automatically enable this support. But once a crash happens and you need to do something during the loading screen, then unfortunately there is nothing you can do.
What to do then? I want to say right away that the first thing you need to do is check the simplest thing that can only come to your mind, because sometimes the problem can really be somewhere on the surface. Therefore, first check whether the keyboard cable is connected to the computer, try moving it to another USB port, and if possible, connect another keyboard.
If none of this helps, then most likely it's a configuration issue. You need to login BIOS, namely, at the very beginning of booting your computer, press the function key responsible for entering. Most often this is the key DEL, but in different cases it could be F1, And F2.
As a result, when you get into the BIOS itself, depending on the version, you will need to find an item related to USB keyboard support. It may be called "USB Keyboard Support" or "Legacy USB Support". If you see that the “Disabled” mode is next to these items, then support is disabled and you need to activate the “Enabled” mode.
After that, save all the settings, reboot and voila.
As a rule, it is this setting is the solution to this problem. Although I heard that someone this decision did not help, and he decided to try to look for the problem in the components. It turned out that one bar random access memory It wasn’t quite working (according to his words) and when he pulled it out, the keyboard started working normally. I don’t know how this is connected, but if something happens, you can try this method.
Well, I’ll finish here. I hope you liked my article. And if you still haven’t subscribed to my blog updates, be sure to do so now so as not to miss the most interesting things. Well, I'm waiting for you again on my blog. Good luck to you. Bye bye!
User question...
Hello.
Help with one problem. Out of the blue the keyboard on my Lenovo laptop B70-80. The laptop did not hit, did not flood, did not hit - just after turning it on, it did not respond to pressing some keys. What can be done?
Good day!
What is good about a regular computer in this regard is the quick change from one keyboard to another. Unfortunately, this procedure cannot be accomplished so quickly on a laptop.
In general, for the keyboard to stop working for no reason is an extremely rare case. Most often, the user guesses what the reason is (and sometimes remains silent). For example, quite often the keyboard is flooded with tea, water, juice; mechanical damage, etc.
In this article, I will look at the main reasons why the keyboard fails to work, and what can be done to restore the device’s functionality. So...
The keyboard on the laptop failed: reasons
What can be done to temporarily correct the situation?
I would like to start the article with what temporary measures can be taken in order to at least somehow type some characters and press the necessary keys (which may be needed in the process of restoring functionality).
- Method No. 1- connect a USB keyboard. So that any modern laptop has several USB ports. By the way, if the USB ports also do not work, then this is a rather bad sign and may indicate a faulty motherboard. fee;
- Method No. 2- call the on-screen keyboard. It is located in the section: Control Panel/Accessibility/Ease of Access Center (see screenshot below).
1) User inattention/ignorance
No matter how funny it may sound, very often the keyboard “does not work” due to the user’s ignorance. For example, how many times have people complained to me that the numbers on the keyboard are broken, that dates cannot be entered, etc. - but the fact is that the numeric keypad works when the key is pressed Num Luck(by the way, there is often an LED on it or above it).
So, if this key is not pressed, when you try to enter numbers from the numeric keypad, your cursor will jump, move, and not respond at all.
If numbers don't work for you, be sure to pay attention to this key!
Note: some laptop models include numeric keypad only by pressing the key combination: Fn+ Num Lock.
By the way, one more point: regarding the function keys (F1, F2, F,3... F12). On modern laptops, in order for any of these keys to work, you also need to press the FN key. Usually, this moment is configured in the BIOS.
The screenshot below shows the "Advanced" section Dell laptop- in the "Function Key Behavior" item - it is possible to choose how they will work function keys: in the mode of multimedia buttons (turn down/increase volume, brightness, etc.), or in the mode of normal functions (refresh the page, call help, etc.).
I won’t go into detail here on how to enter the BIOS and how to configure it, but I will provide a couple of links to articles from which you can glean this information:
- how to enter BIOS -
- buttons to enter BIOS for different manufacturers laptops -
- how to reset BIOS settings -
2) Debris under/between the keys
Dust, dirt, crumbs love to accumulate under the keys of the keyboard, and in general, the keyboard gets greasy over time from greasy hands and fingers, even for fairly neat users. Over time, some of the keys (usually starting with 1-2) stop responding normally, and you have to press and press hard on them.
An article about how to clean your laptop/PC from dust. Link to the section of the article about how to clean the keyboard from crumbs, greasy marks and dust -
There are three ways to clean the keyboard (in my opinion):
- use special A USB vacuum cleaner that can accurately and carefully collect most of the crumbs from the surface of the keyboard;
- use special Velcro, which when you press them fill the plane of the keyboard, and when you unhook them, all the dust and dirt remains on them;
- You can blow off the keyboard using a regular vacuum cleaner (especially if it has a reverse mode), and then gently wipe it with a damp cloth soaked in soapy water.
3) Software glitch, error loading OS
If not a single key on your keyboard works at all (and you didn’t flood it, didn’t knock, etc.), then I hasten to assure you that in more than half of the cases the software is to blame. For example, a driver conflict might occur during the loading stage of your OS, or you might have picked up some kind of virus, etc.
The easiest and surest way is to try rebooting your laptop first. It would be a good idea to try entering the BIOS (how to do this, see this article:).
Note: if your keyboard works in the BIOS (and the fact that you entered it already indicates this) - then the problem is probably in the software. In case of hardware problems, the keyboard will not work anywhere: neither in the BIOS, nor in Windows, nor in any other OS!
If after rebooting the laptop the keyboard does not work again (and the keyboard worked in the BIOS), try rolling back the system to the state when it worked. Below is a link to an article on restoring Windows.
How to restore Windows 10 -
If recovery doesn't help (or you don't have recovery checkpoints), you can try. I also recommend paying attention to the drivers, more about them below...
4) Problem with drivers
In general, keyboard drivers are usually installed automatically when installing Windows. But sometimes the following problems occur with them:
- Some laptops have a slightly non-standard keyboard with additional options. functions - and for its full operation, special ones are required. drivers. If they are absent, the keyboard may not work in full mode;
- There could be a driver failure/conflict in the system. This often happens with USB drivers, TV tuner drivers, audio drivers, etc.;
- The keyboard drivers themselves may have been damaged.
- how to remove any old or unnecessary driver in the system:
- programs for working with drivers: search, update, removal:
5) Acidification of the keyboard cable contacts // damage to the cable
If the previous steps did not help, and the laptop keyboard also does not respond to any of your presses, I recommend checking the cable. The following usually happens to him:
- if you disassembled the laptop and disconnected/connected the keyboard, it is quite possible that the cable could simply not be inserted tightly into the socket. If this is the case, try reconnecting the keyboard;
- it is also often damaged when the laptop is not carefully disassembled (the wires in the cable are quite thin and can be broken with one careless movement);
- the contacts of the cable, or the socket in which it “sits” could oxidize over time and not give good contact. Try to gently wipe them with an eraser (as a rule, the contacts begin to become lighter even by eye, which means you have removed the oxidized coating).
IMPORTANT! On some laptop models, it is far from easy to remove the keyboard: to do this, you may sometimes need to disassemble the entire device to the ground! In general, it is usually enough to unfasten several latches with a screwdriver (see photo above) and lift the keyboard plane.
By the way, if your laptop is under warranty, use the service center. Your independent disassembly (including disconnecting only the keyboard) will almost certainly cause a refusal of warranty service!
6) Keyboard flooded with liquid
Some experts brought up interesting statistics: every 50th mug over a laptop tips over on it. In this case, it is the keyboard that suffers first of all. By the way, from my own experience I will say that in case of any spill, the keyboard suffers 100%, but the rest of the devices (underneath it) still have a chance to remain dry: it all depends on the speed of the user’s reaction after the incident, and the amount of liquid spilled.
In general, liquid is different. Liquids containing salt or sugar are especially dangerous for iron: tea, juice, lemonade, etc. When such a liquid gets on the contacts and metal parts of the boards, the process of oxidation and corrosion begins, which destroys (in some cases not immediately, but surely) iron.
What to do if your laptop is flooded:
- turn off the laptop: you can immediately disconnect the power supply and remove the battery as soon as possible (the sooner the better);
- then turn the device over so that liquid begins to flow out of it;
- dry the device for several days (before this, the device simply will not dry). Do not use hair dryers, heaters, or other similar devices for drying;
- It is highly advisable to disassemble the device and see how far the liquid has penetrated. In general, of course, if you have never done this yourself, I recommend showing the device to a service center: because even if your device works after drying, the remaining liquid (especially if it was aggressive: juice, beer, tea, etc.) will slowly and surely destroy your iron from the inside, causing corrosion and oxidation.
7) Mechanical damage
In general, by and large, there is nothing to break in the keyboard, and as a rule, the breakdown is associated with damage to a specific key (i.e., 1-2 keys will no longer be pressed). Typically, this happens if something fell on the laptop keyboard, or you accidentally touched the device (this, for example, could happen on the road, when moving the device).
In some cases, when the contacts on the keyboard board are damaged (or the button is “clamped”), the keyboard may not respond to pressing other keys and may not behave stable. By the way, you can find out if you have any key pressed if you open some text editor: Word, notepad, etc.
Button "a" is frozen
By the way, if 1-2 keys do not work for you, then you can reassign to others and use the keyboard for a while (or maybe this time will be long?!).
To help! How to reassign one key to another (for those who cannot press a button on the keyboard) -
8) What about the laptop battery?
And the last thing I would like to dwell on in this article. In general, this is quite rare, but I still encountered it on one “no name” Chinese laptop: the keyboard on it stopped working if the battery was discharged and below a certain minimum of 7%, apparently some kind of software was working (I hope such software will not become popular?) .
This concludes my opus, for additions on the topic - thank you in advance. Good luck!
Hello.
The laptop keyboard stops working as often as a regular keyboard desktop computer. True, if the keyboard of a regular PC can be easily and quickly disconnected and connected with a new one (at least for testing), then with a laptop it is somewhat more difficult...
In general, there are many reasons why the keyboard on a laptop does not work. In this short article I want to look at the most common ones.
1. Troubleshooting...
If the keyboard stopped working suddenly, without any serious reasons (for example, falling the device) - then the first thing I recommend doing is to check whether it “completely does not work” or only in Windows?
The fact is that some viruses and especially drivers (for example, for Bluetooth) can lead to the touchpad and keyboard being disabled if they fail. Most quick way Check this by going into the BIOS.
How to enter BIOS (entry keys) -
If you entered the BIOS and the keys work there - then most likely the cause of the malfunction is in Windows. In this case, you can try booting into safe mode(or using ) and check if the keyboard works. If it works, the reason is Windows 99.99%! In this case, one of the most simple options solutions to the problem are reinstalling Windows(or search for a faulty driver, you can find out in device manager).
Device Manager: drivers missing.
If you are not logged into BIOS - the keyboard does not work completely and the problem is not in the drivers or Windows crash. In this case, I recommend trying to connect to USB port mouse and keyboard and see how they work. If they don’t work the same way, the problem may be a burnt-out chip on the mat. board (you can’t do without a service center).
2. Problem with drivers.
As I said above, this is a very popular reason for keyboard failure. Occurs in most cases due to USB and Bluetooth drivers. To solve it: you can roll back the system (restore) if there are recovery checkpoints; remove faulty drivers; reinstall Windows.
1. System Restore
Go to the control panel and run recovery (in Windows 8/7: Control Panel\All Control Panel Items\Recovery).
2. Removing/installing drivers
I have several good articles about this on my blog. I will provide links to them here. IN general case you need to: remove completely faulty drivers, and then download the drivers from the official website of the device manufacturer.
3. Reinstall Windows
Reinstalling Windows 7 instead of Windows 8:
3. Is the battery ok...
The fact is that some laptop models, due to their specific design, may not work correctly with the battery. Those. if it is connected to the laptop and is discharged (or simply does not work), then the keyboard may stop working. This can be easily checked by disconnecting the battery from the laptop and connecting it to the network.
Laptop: bottom view (green arrow indicates the place for the battery).
4. Is the cable ok...
If the touchpad on the laptop works, the connected keyboard and mouse to USB also work - perhaps the problem is in the cable: it could simply move away (either due to a loose contact, or when moving the device). Also, the cable from the keyboard could be connected incorrectly if you recently removed the keyboard (for example, when cleaning a laptop, or indeed when disassembling the device).
It is also possible that the cable may be broken (bent) (this may be due to the poor design of the laptop.
Laptop keyboard: cable for connecting to the device.
Important! To remove* the keyboard from your laptop, pay attention to its outline: there will be small latches on the top and bottom (sometimes on the left and right) sides. It is convenient to pry them off with a regular screwdriver and then carefully remove the keyboard. You need to act slowly, the cable in some models is quite thin and damaging it is very simple. If you have never disassembled your laptop before, you should probably contact a service center.
* By the way, in some laptop models it is not so easy to remove the keyboard; you must first unscrew the additional fastener.
5. If several keys do not work
If dust (or small particles, crumbs) gets under the keys, they may stop working. Enough common reason inoperability of individual keys on the keyboard. The fight against this scourge is simple: clean it from dust and do not take the device into the kitchen (as many people like to do...).
6. Flooded keyboard
If a liquid containing sugar or salt (for example tea or lemonade, juice) is spilled on the surface of the keyboard, the corrosion process will begin. By the way, because of this, not only the keyboard can fail, but also motherboard and other laptop devices.
Actions when flooding:
- Disconnect from the power supply completely and as quickly as possible (remove the battery from the device case, disconnect the power supply);
- Turn the device over so that all the liquid flows out;
- Do not turn on the device until it is completely dry (usually 1-2 days).
- It is advisable to show the device in service center. The fact is that even if the device works after switching on, a corrosion process that could begin cannot be ruled out. And soon, the laptop may fail (especially if “aggressive” liquids have been spilled: coffee or tea with sugar, Coca-Cola, Pepsi, juices, etc.).
6. Temporary measures
In my opinion, there are 2 effective ways to temporarily solve the problem.
1) Connection additional keyboard to the USB port (if, of course, they work).
2) Enabling the on-screen keyboard (especially helpful if 1-2 keys that you need to press from time to time do not work).
How to enable the on-screen keyboard? Go to " Control Panel\Accessibility\Accessibility", then turn it on.
Best wishes!