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Thinkpad T42 keyboard problem

Q: Thinkpad T42 keyboard problem

my laptop keyboard is not working right. first the specs. ibm thinkpad T42, machine type 2378, model R4U, OS xp-pro coa sp2, 512mb ram. my cpu usage jumps up and down between 40 to 100% when running my spy sweeper, fire fox isp and a voice chat program. when i am not running any programs except whats need for the laptop to work the cpu usage is 3 to 10%. and i have available ram. OK now with the problem. when i try to type on the keyboard the letters or numbers don't show up. but if i hold the keys down it will show up there is a delay of about 2 seconds. if i just push down the keys at normal speed it wont show up. it will only show up if i hold it down for about 2 seconds. i thought the keyboard was bad so i bought a new one from the factory. i installed it but it is still doing the same thing. just to let you know every thing else about the computer works great and and all my programs do not have any lag. its only the problem with keyboard delay. i will just add this i have cleaned up the computer,defragged, ran spy ware and anti virus and it has been working fine for years without any problems.

RELEVANCY SCORE 200
Preferred Solution: Thinkpad T42 keyboard problem

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A: Thinkpad T42 keyboard problem

Check your keyboard properties in the control panel,

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RELEVANCY SCORE 54.8

Help please!

I brought home the laptop I use at work. I am trying to login to my employer's VPN network. For some reason the keyboard keys that share letters and numbers (for example, o is also 6, K is also 5 etc) will only type numbers. I cannot get letters when I type those keys, so I cannot login with my password,
What am I doing wrong? I don't think I changed any configurations so why can I not get letters from these keys?
 

A:IBM Thinkpad keyboard problem

It sounds like the NUMLOCK is on?????
 

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RELEVANCY SCORE 54

Hi all, Since a few days I have been suffering from a keyboard problem.Sometimes the keyboard doesn't register my strokes, despite the fact that I'm pushing normally. In fact when it happens the amount of pressure doesn't seem to matter. Sometimes it is a letter and sometimes it happens with the Enter button. In any case it goes away after I keep pressing for 5/6 times. I was hoping that anyone here could provide me with a suggestion as to how to fix this problem. Kind regards, Niels

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RELEVANCY SCORE 54

Hi all, I have a Thinkpad x240 that I bought refurbrished in ferbruary. It was working perfectly untill recently I've noticed a problem with a bult-in keyboard. So microphone mute key stopped working and when I press down and hold left Alt key, microphone mute indicator powers on. Also sometimes Fn lock led stays powered on even though Fn lock is disabled. I've noticed this behavior after I've used logitech wireless mouse with usb unified reciever. Is there a way to fix this strange behavior? I've already cleaned contacts on the keyboard connector on the motherboard and cable, but it didn't fix the problem. Also it seems like it is not OS dependet, because it has the same behavior in bios/linux/windows 7 & 10.

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RELEVANCY SCORE 54

My T420 recently started malfunctioning, certain keys type more than one character. For example pressing the 'V' key types 'vg'. Does anyone know the cause of this issue? Thanks in advance.

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RELEVANCY SCORE 53.6

Since the last few days, when even I type letter "a" on my keyboard, automatically, I get "\;lkjfds" and also disables mute function and also cannot type number "1" as it opens windows, files and folders instead of number 1. I tried updating everything including driver unstalled and reinstalled but problem continues. All my software is upto date.  The thinkpad is just around 6 month old.  Help me to  how to solve this problem. 

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RELEVANCY SCORE 52.4

Basically, it seems most ThinkPads (confirmed on my X1 Carbon, P1, T470, and T460) have a serious problem with their keyboards not detecting keypresses. For example: typing "load" quickly produces "loda" every time. "Oad" is fine, but "load" will reliably produce "loda". This error seems to be related to the extremely slow polling rate of ThinkPad keyboards. Using an external keyboard will not cause the same issue. Additional info: https://www.reddit.com/r/thinkpad/comments/9ivh0u/thinkpad_keyboards_measurement_of_polling_lag_and/additional info 2: https://www.reddit.com/r/thinkpad/comments/9j70v6/thinkpad_keyboard_firmware_worse_than_anyone/This is a serious problem that hinders productivity of anyone who types quickly, and it needs to be addressed.Thank you.

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RELEVANCY SCORE 43.6

I was just given a Thinkpad 390. It was having problems booting past the bio screen. Eventually, after trying to enter bios and no luck, I tried hooking up the keyboard from my tower. The keyboard worked in the thinkpad, but I found that the only way the laptop will boot up is if the keyboard is plugged in. Then, once in windows (2000) the laptop keyboard still wont work, whether the tower keyboard is plugged in or not. I have no idea if anything was spilled on the machine or not. Does anyone know how to get into the keyboard to make sure its plugged into the board correctly?? I unscrewed the screws, but its not as easy as that though. Any ideas? Thanks
 

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RELEVANCY SCORE 43.6

I have a Thinkpad 600. Some of the keys have a number on them along with the letter. These keys won't type the letter just the symbol or the number. Like the u key has the number 4, the i key has the number 5, and so on. The keys were working fine a few days ago. Now they are not. Can anyone help me? Thanks in advance.
 

A:Thinkpad 600 Keyboard

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RELEVANCY SCORE 43.2

Ok here's the story... I borrowed a semi broken thinkpad from a friend... monitor is cracked and most of the keys don't work... so when I got it I used a external keyboard.. no problem... with a splitter for the mouse... no problem... It has windows 2000 pro. I personally use windows 98 so I was trying to get my scroll mouse to work so I loaded the software for that mouse... big mistake..... after that No mouse or keyboard worked.... I eventually tried another mouse that goes through the parallel port... ah that works... still no keyboard... I unistalled the mouse and keyboard many times... with no luck... my next thought was the com port so I uninstalled that.... nope still no keyboard.. even the few keys from the laptop that did work before do not..nor the laptops own mouse. So I hope I said it all... except because this is borrowed I don't have the discs.... so what else? Joel
 

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RELEVANCY SCORE 43.2

I have a ThinkPad Compact USB Keyboard with TrackPoint. Great Keyboard, however the micro USB connection keeps getting unplugged. Any slight movement loosens the connection which is very agrivating when one is typing. Is there a solution to make the micro USB connection more perminant?

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RELEVANCY SCORE 43.2

I have a Lenovo Thinkpad
Model : E431 (Edge Series) Number: 62774UQ
(3rd Gen Ci5/ 4GB/ 500GB 7200rpm HDD/ Windows 10)

I purchase this in 2013. It has been used moderately over the first 2/ 2 1/2 years
The laptop was idle for the past 6 months.
After I recharged the laptop, I noticed that some keys began to malfunction. So I installed Windows 10 (Windows 7 previously). However the problem persisted.
The shift key seems to be pressed as per its own wish and the sticky keys notifications comes up on its own. The Enter key sometimes works, sometimes it doesn't, sometimes on its own. The backspace key also does not function sometimes.
I then opened up the laptop and removed the keyboard from the laptop and then replugged it back in hoping it would make a difference, but it didn't.
The touchpad also become unresponsive sometimes and I have to press the Windows key twice to make it work again.
What could be the source of the problem? Is it the keyboard or is it the motherboard to blame? Kindly provide a solution.
 

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RELEVANCY SCORE 43.2

Hi. My T23 Thinkpad had a key pop off thanks to a book falling on the keyboard. I have the key and both unbroken little plastic holder parts. I cannot get it together, and neither could the "Geek Squad" at Best Buy nor my local computer repair shop guy. Does anybody know the secret? Nothing is broken; it just won't go back on. Thanks!
 

A:Replace Key on Thinkpad keyboard?

have you looked under the other keys?
maybe a plastic pin has broken off and
it cannot be fixed or maybe it can.
Carefully lift up another key but just
barely to see how it connects.

Mark S
 

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RELEVANCY SCORE 43.2

So it was working perfectly fine but my cat steped on some keys and now it types random letters for example pressing n = ymn , b = tvb , tab = x , t = tvb , y = ymn , / = [#/ , [ = [#/ , space acts like enter + space + backspace , backspace same thars all of the keys that are bugged for me. Any help ?










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A:Thinkpad L412 keyboard bug

Nevermind fixed it 

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RELEVANCY SCORE 43.2

  hello guys.i will install windows 10 on the my thinkpad, i changed baios to DVD mode , but i can not find DEL keyboard for next.please help me.thanks  z 

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RELEVANCY SCORE 43.2

Hello, I have just purchased a P51 and it currently has a US keyboard. I'd like to change this to UK style, which I've found on the parts list. My question is, does the P51 support backlit keyboard? If so, please could someone let me know the part number of UK Backlit Keyboard? The model type is 20HH. Thank you in advance. Regards,Matt

A:Thinkpad P51 - UK Backlit Keyboard

Welcome to the Communityhttps://download.lenovo.com/parts/ThinkPad/p51_frubom_20171004.pdf4 items with your demands

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RELEVANCY SCORE 43.2

I bought my P50 in March of 2016. I've been very happy with my purchase overall, the only disappointment has been the low key-rollover property of the built-in keyboard. I am a programmer/game developer, and it is important for me to have a keyboard that supports multiple simultaneous keystrokes. After taking ownership, I found that the keyboard drops strokes with as few as 2 keys already held down, which makes it pretty useless for gaming.  I work around this by plugging in a USB keyboard when I need to test my game projects. At the time I purchased, there was only one option for the keyboard. Today, I was browsing the Lenovo online store, and noticed that there's now an option for a backlit keyboard in addition to the standard non-backlit keyboard.  Under "Help Me Decide" it says: Lenovo has refreshed the keyset on all ThinkPad laptops, outfitting them with the ThinkPad Precision Keyboard.This new keyset allows a more comfortable, fluid and accurate typing experience with it's slate of individually rounded, spacious, and low-set keys. The ThinkPad Precision Keyboard simultaneously delivers a modern look and feel to your ThinkPad.*Select models are available with a backlit keyset as standard, or as an optional upgrade.*Most 15.6" models come standard with full keyboard including dedicated number pad. I am wondering if this refreshed keyboard means a  higher rollover. I tried asking the sales support chat, but they were unable to tell me the... Read more

A:ThinkPad P50 keyboard refresh?

I turn the AIDA64 sensor panel display on and off with three-key combinations.  Experiments found that five-key combinations also work, e.g. Ctrl+Shift+Win+Alt+Z. Not sure if that helps you.  I have the backlit keyboard.  My P50 was delivered in November. 

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RELEVANCY SCORE 43.2

Can I replace the keyboard of a P51 with one for a P50?

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RELEVANCY SCORE 42.8

I have just received my new T470p this afternoon and despite many "Google" searches I cannot get the keyboard backlight to work. I tried tech. support, but as it was after 6PM they were closed and this is driving me mad! Could it be a faulty device? I do not want to go through the motions of setting-up my PC if it has to be replaced. All answers gratefully received.

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RELEVANCY SCORE 42.8

Hello, I have a ThinkPad Yoga S1. The keyboard sometimes becomes unresponsive, while the external keyboard still works fine. The keyboard revives after going to sleep mode. I have had this issue since the beginning (2 month ago). The fact that it still works fine with the external keyboard incriminates the driver. But all drivers are up to date. (I made all the updates I could find.) And in the device manager, the status reads  This device is working properly . Anyone else having the same issue, ... and its solution? Thanks,JC










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A:ThinkPad Yoga S1 keyboard unresponsive

Hi Jc-createlli,
 
Welcome to Lenovo Community!
 
As per the query we understood that you are facing issue with keyboard not working when system is on sleep mode on your ThinkPad Yoga S1.
 
Go to device manager and under keyboard adapter uninstall all the adapter and restart the system and check.
 
Run ThinkVantage system update utility and update all the drivers and application from that.
 
Hope this helps.
 
Best regards,
Hemanth Kumar



Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.Follow @LenovoForums on Twitter!

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RELEVANCY SCORE 42.8

I ordered ThinkPad P71 laptop recently(doesn't shipped yet). I really excited about it, but one fact makes me frustrated... why I can't order laptop with different layout than only English???US is multinational county, many immigrants here, they still need keyboard layout with their language!Apple, for example, provide ability to order laptop with any keyboard layout. Why Lenovo doesn't??? I came US not so far ago and still need Russian keyboard layout.I have 3 options:1) Order another keyboard with layout that I need(Russian) - most expensive, I don't need two keyboards2) Use stickers - ugly solution, doesn't work with backlit3) Laser engraveling - good result, work with backlit, but unavaliable in my areaIn fact, I haven't acceptable solution for my problem...

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RELEVANCY SCORE 42.8

I'm using an on screen keyboard to type. Ihad a weird .exe file running in processes after using google and I couldn't end it. My computer was slow and it seemed like another google re-direct virus. I tried running virus scanners, but they would shut down or wouldn't open. I ran combofix, but lost internet connection while doing so. My screen was frozen when my connection came back. I had to shut down. I tried to run it a couple more times but it froze. After a few reboots to safe and regular modes and trying to run virus scanners, I noticed my keyboard doesn't respond. I managed to reinstall malwarebytes and get ridof viruses but my keyboard still doesn't work.

Standard 101/102-key or microsoft natural ps/2

device status

windows cannot load the device driver for this hardware. the driver may be corrupted or missing. (code 39)

i have been able to type in the opera browser in safe mode though.

A:Laptop keyboard not working - ibm thinkpad

You are infected. Can you boot into Safe Mode (press F8 at bootup)? Does the keyboard work here? If not have you tried an external keyboard? Run Combofix from Safe Mode, you do not need to be online when it runs. Be sure to disable your Anti-Virus before it scans. If still having problems, click on the link for Virus/Trojan in my signature and post there for more help.

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RELEVANCY SCORE 42.8

had a weird .exe file running in processes after using google and I couldn't end it. My computer was slow and it seemed like another google direct virus. I tried running virus scanners, but they would shut down or wouldn't open. I came here as I've before and saw a topic with the same problem and ran combofix, but lost internet connection while doing so. My screen was frozen when my connection came back. I had to shut down. I tried to run it a couple more times but it froze. After a few reboots to safe and regular modes, trying to run virus scanners, I noticed my keyboard doesn't respond.

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RELEVANCY SCORE 42.8

Hi community, please your support Today I start my laptop and a BIOS message appears warning to update the date and time, I accessed to the setup and the date and time was changed to 01/01/2001 and time 00:00:00, I updated to today July 21t, 2018 8:12pm. I saved the configuration and boot continues.  Apparently the problem was solved and Windows 10 started. Now I have the following problem: It is not possible to use the keyboard in a regular basis, 2 letters by second, I have to wait 2 seconds to enter a letter, if I enter the letters a litle faster some of them are missed and the words and phrases are incomplete. Please need your feedback, I can not use the keyboard as I used to, as a reference, to write this message took me almost 30min,very frustrating Many thanks in advance for your comments and solution proposals Jose CollantesMexico

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RELEVANCY SCORE 42.8

I have a Thinkpad Yoga 12 model. It is using Windows 10. What is the driver/software I should check to make sure I'm running the latest version for the equivalent of what used to be called "Transitions"?  Basically something that recognizes various keyboard configurations such as tablet mode, tent mode, etc. and appropriately disables or re-enables the keyboard? Two things happened last night as I was playing a game in tent mode:- firstly I could not get the screen to rotate 180 degrees when I switched from tablet mode to normal laptop mode by rotating the keyboard and flipping to normal orientation.  So everything was displayed upside-down.- the keyboard was unresponsive, but I could use the touch screen fine and use the Windows button under the screen to get to the Start menu.   So basically somehow something stopped responsing that should have told the system that I flipped the laptop from tent mode to normal mode and also rotated the keyboard forward.

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RELEVANCY SCORE 42.8

I have Lenovo Thinkpad Edge 14 machine with intel core i3 processor and its keyboard become faulty for some reason, i use with external usb keyboard and system works well.I am looking for replacement keyboard, can any one help me to fine the original one as i am located in UAE.???

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RELEVANCY SCORE 42.8

Hi, i am facing a small issue with my x1 carbon which is the keyboard back-lit. The keyboard back-lit is disabling it self randomly plus when i make restart or shut down the laptop. Is there any solution to keep it lighted on permanently !

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RELEVANCY SCORE 42.8

Hi Community, I have recently got a ThinkPad P71 but it came with a non-backlit keyboard and planning to replace it with a backlit one. The FRU No. for my current non-backlit keyboard is:Payton2Walter2 NBL KBD,ARA,DFN (01HW246)Equivalent to:Payton2Walter2 NBL KBD,ARA,CHY (01ER956) P71 NBL - 01HW246 TopP71 NBL - 01HW246 Bottom1P71 NBL - 01HW246 Bottom2However, I found a backlit keyboard BUT it's for P70 with FRU No.:PYWL-KBD,ARA,DFN,BL (00PA375)Equivalent to:PYWL-KBD, ARA, CHY, BL (00PA293) P70 BL - 00PA293 TopP70 BL - 00PA293 Bottom 1P70 BL - 00PA293 Bottom 2The only difference I can see from the the above two keyboards is that the top row keys on the P70 keybaord has some different symbols than the one on P71, specifically the key F7, F10, F11 & F12, while I don't have any idea if enternally the are the same! My question is, is P70 backlit keyboard compatible with P71? Can I fix the 00PA293 on my P71? Or I must ge a P71 backlit keyboard with the following FRU Nos:Payton2Walter2 BL KBD,ARA,DFN (01HW287)Equivalent to:Payton2Walter2 BL KBD,ARA,CHY (01HW205) P71 BL - 01HW205 TopP71 BL - 01HW205 Bottom1P71 BL - 01HW205 Bottom2

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RELEVANCY SCORE 42.8

Hi, I would like to know if there are ways to repair a Thinkpad x200 keyboard without replacing it. It has sustained a water spill and the T, Y and Backspace buttons have not been functioning since. The keyboard?s circuit board is not easily accessible because it?s sealed with glue by the top layer which holds the buttons in place

Any help would be appreciated, thanks.
 

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RELEVANCY SCORE 42.8

Hi, I was looking for a replacement keyboard for my x230 and was wondering how I could tell if that keyboard would be compatible with my laptop. For example would a Korean x230 keyboard work on my x230 from Canada? and if the Korean x230 Keyboard had backlighting, would that backlighting work on my laptop which currently doesn't have any backlighting. I searched for a bit in the forums but couldn't get a clear answer, any help would be appreciated!Thanks

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RELEVANCY SCORE 42.8

Hello,I've got ThinkPad L540 and everything is working perfectly except the keyboard - some of the keys are really noisy even when only your fingers are on them and not actually pressing them. I was wondering is it possible to buy backlit keyboard or for this model this is something impossible?Regards,

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RELEVANCY SCORE 42.8

I have a Thinkpad X1 (2014) and the Adaptive Keyboard is nopt working. How do I disable it?

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RELEVANCY SCORE 42.8

The "period" key was sticking on my laptop last night then a little later, it worked fine, but then my right shift key was giving me trouble.
I suspect that somehow a piece of food worked its way into the keyboard(though it is hard to imagine, no more clearance than there is). Probably from one of the kids. Whatever is down there seems to be moving around.

I attempted to disassemble, and got as far as the actual touchpad. There is a IC cable leading from the touchpad down to the motherboard that is keeping me from opening the lid up all the way. I would rather get the advice of someone who is familiar with these before I "experiment and attempt it on my own.

Can anyone tell me how to take the IC cable from the touchpad?

Thanks in advance.

Perry
 

A:IBM R40 ThinkPad laptop keyboard trouble

Look on this page.

IBM R40 Removal/Installation Procedures

They have a movie about removing the keyboard.
 

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RELEVANCY SCORE 42.8

Hi there, Some of the configurable buttons have stopped working on my keyboard (Thinkpad Yoga).  They are f9,f10,f11,f12 Is there anyway I can remap these to the functions they are suppose to perform? ThanksChumby

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RELEVANCY SCORE 42.8

Hi Community, I have recently got a ThinkPad P71 but it came with a non-backlit keyboard and planning to replace it with a backlit one. The FRU No. for my current non-backlit keyboard is:Payton2Walter2 NBL KBD,ARA,DFN (01HW246)Equivalent to:Payton2Walter2 NBL KBD,ARA,CHY (01ER956) P71 NBL - 01HW246 TopP71 NBL - 01HW246 Bottom1P71 NBL - 01HW246 Bottom2However, I found a backlit keyboard BUT it's for P70 with FRU No.:PYWL-KBD,ARA,DFN,BL (00PA375)Equivalent to:PYWL-KBD, ARA, CHY, BL (00PA293) P70 BL - 00PA293 TopP70 BL - 00PA293 Bottom 1P70 BL - 00PA293 Bottom 2The only difference I can see from the the above two keyboards is that the top row keys on the P70 keybaord has some different symbols than the one on P71, specifically the key F7, F10, F11 & F12, while I don't have any idea if enternally the are the same! My question is, is P70 backlit keyboard compatible with P71? Can I fix the 00PA293 on my P71? Or I must ge a P71 backlit keyboard with the following FRU Nos:Payton2Walter2 BL KBD,ARA,DFN (01HW287)Equivalent to:Payton2Walter2 BL KBD,ARA,CHY (01HW205) P71 BL - 01HW205 TopP71 BL - 01HW205 Bottom1P71 BL - 01HW205 Bottom2

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RELEVANCY SCORE 42.8

I really hate the ISO keyboard. They managed to take the existing keyboard design, which is already sub-optimal, based on 1800 typewriters, and managed to make it worse! With an ISO keyboard your pinkies have to travel twice as far from home row just to hit two of the most used keys, shift and return:At least some companies recognize this problem and have been giving the option to buy laptops with ANSI US keyboards, all over the world. Sadly, I couldn't find a single EU Lenovo online shop that carried this keyboard option, and the US shop will not sell internationally. I would love to buy a P40 Yoga, but the ISO keyboard is a deal breaker, because I spend most of my computer time typing. Do you have any advice?

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RELEVANCY SCORE 42.8

Hey guys, Had my Thinkpad Edge E450, for more than a year now. Never really had any problems with the keyboard. However, since yesterday, my keyboard has simply gone crazy on me. Right shift + c no longer registers, even though right shift + any other key still works. c works too along with c+ left shift. w+e keys, when pressed together doesn't register the e although both keys registers fine when pressed individually. Most weird of all is the fact that F4, associated with microphone no longer works either when FN is locked and when it isn't. However, every time I press the G key, the microphone activates/deactivates. I used the lenovo diagnostics tool and the keyboard passed the tests. Tried clean install windows 10 on the whole system and still the same result. Also tried uninstalling all drivers for keyboard in device manager and it still hasn't gotten any better. I didn't do any manual updates or anything that I know of which could affect the keyboard. Please help! That microphone popup is trying to hog my attention whenever I try to write a paper.

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RELEVANCY SCORE 42.8

I have just received my new T470p this afternoon and despite many "Google" searches I cannot get the keyboard backlight to work. I tried tech. support, but as it was after 6PM they were closed and this is driving me mad! Could it be a faulty device? I do not want to go through the motions of setting-up my PC if it has to be replaced. All answers gratefully received.

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RELEVANCY SCORE 42.8

I was cleaning my keyboard keys the other day and somehow managed to lock it the keyboard completely.  None of the keys respond.  Does anybody know of a sequence of keys which I may have pressed inadvertantly to lock it and, if so, how can I unlock it again?  Have been using an external keyboard, but it is not ideal of course.

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RELEVANCY SCORE 42.8

Hi, thanks in advance for your help.I have a Thinkpad T570 with a UK keyboard, I would like to swap it with a french one.I did it for many Thinkpad, but I cannot find any french keyboard for this model ... is there any way to find this keyboard? or is there a model of Thinkpad compatible with the T570 keyboard ? Best regards,

A:Thinkpad T570 - keyboard change

There are two vendors and four french keyboards available for your T570:- FRU: 01EN939, Tachi NBL KBD,FR,CHY.- FRU: 01ER552, Tachi BL KBD,FR,CHY.- FRU: 01ER511, Tachi NBL KBD,FR,LTN.- FRU: 01ER593, Tachi BL KBD,FR,LTN. CHY means Chicony and LTN - LiteON.NBL stands for non backlit and BL - backlit. If you ask me, which one vendor will be better, then in the past LiteON made pretty good keyboards and Chicony one of worst in comparison to other. I have seen, that LiteON's keyboards are available on eBay.  Keyboards for T570 are allowed to be replaced by customer, so you'll not lose warranty after replacing keyboard (obliviously, if you don't damage something in the process).





---Please don't forget to mark your topic as solved, if someone has answered your question.

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RELEVANCY SCORE 42.8

The keyboard stopped working this morning. It lights up but after 5 seconds the backlight turns off and all keys are non-responsive. The tablet asks to go into tablet mode when I separate it so it does recognize the keyboard is plugged in

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RELEVANCY SCORE 42.8

Hello, I bought the Thinkpad P50 about a month ago and I got all that I needed on it, except I forgot to check the box to get it with the backlit keyboard. I have already bought the backlit keyboard from an online store (part #: 00PA288), but I just want to make sure that there is no issue with me installing it on my Thinkpad P50. That is, the hardware/software is fully compatible with the backlit keyboard even if it did not originally come with it? Thanks,Tony.

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