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An i7 gaming laptop released in September 2017. Created to fight heat and keep air flowing with thermal engineering systems.

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Lenovo Legion Y520-15IKBN - Defect Keyboard Fix Suggestion - Any Help?

Hey People,

before i ask my question to help with, i’d like to introduce the keyboard problem / issue of this notebook:

People buying this notebook are first amazed of the price-performance ratio…but then…oh no, some keys of the keyboard won’t work (like E, G, H, Fn, NUM8, NUM/…). There are several solution suggestions on the world wide web, which MIGHT solve the keyboard problem, but none of these solution solved my defect keyboard - so these “solutions” are no real solution, they don’t fix the problem, they’re just like crutches helping the ill, but not really healing the broken leg e.g. (i hope you understand this example :D).

Here is a list of the suggested solutions found on the internet:

1.) (my favorite one xDxDxD)

Origin of the problem (ootp):

Maybe mechanical strain on the keyboard or mainboard?! The WWW doesn’t know ¯\_(ツ)_/¯

Solution:

Remove the middle outside screws of at the back of the notebook, if this doesn’t help, try to remove all three middle screws - then your keyboard will work again - MAGIC (sry, this didn’t help mine, but still helped other notebooks, why, i explain downwards).

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2.) (still not helping, but more explained than the first one)

OOTP:

A faulty keyboard cable isolation (maybe production error)

Solution:

Open the back of your notebook. Then Remove the battery. Take some thin plastic sheet and put it e.g. between the keyboard cable and the motherboard (or the found place of the damaged isolation). Assamble the notebook again. Done. (Also this solution did help some people - but again this solution didn’t help me)

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3.)

OOTP:

??? Same as 1.) ¯\_(ツ)_/¯

Solution:

The opposite of solution 1.) : tighten the two outside (or all) middle screws at the back of the notebook. (also didn’t help me)

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4.)

OOPT:

maybe a keyboard driver problem?

Solution:

After start up press a few key-combinations and then the keyboard will work again…hm.

Try:

  • SPACE + G + E
  • SPACE + H + E
  • SPACE + NUM+ + E
  • SPACE + G + H
  • … what ever, nothings helps…

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5.)

OOPT:

same points 1.) and 3.)

Solution:

Press hard at the keyboard, or at the upper case - the area between the down right corner and the mousepad (other words, the “blank” down right area of the notebook). Then the keyboard will work again (helped for a few weeks, but then i doesn’t help anymore - so it made the problem WORSE!!! —_—)

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6.)

OOPT:

we don’t know

Solution:

Send the laptop to the Lenovo to let them repair it.

—> do not do this!!! as the WWW tells, it takes a lot of time, and Lenovos Repair Center seems not to be able to fix that problem.

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7.)

OOPT:

defect keyboard.

Solution:

replace the keyboard with a new one.

—> do not do this!!! as the WWW tells, new keyboards won’t solve the problem - so it might be a keyboard production error or a mainboard what ever error.

(AND: you can’t really change only the keyboard. you have to change the whole upper case, which actually costs around 80$)

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Did i forget any WWW solution?

None of these solutions i found helped me. Here comes my suggestion (NOT SOLUTION YET) of a possible origin of the keyboard issue:

When starting up the laptop, i figured out that the keyboard starts working after a while - sometimes after 15 min, 30 min or an hour. After startup i tried to put mechanic preassure onto my upper case or keyboard, because i supposed a loose connection inside the keyboard madrix or mainboard (compared to the WWW solutions above). I seemed to help, but a few days later, i didn’t help anymore.

Then i figured out, that even without pressing on my notebook, the keyboard started working well after a while. If i left my laptop for 15 - 30 minutes, the keyboard won’t work again…then after working with the laptop again for a few minutes, the keyboard starts working well again….soooo, what is this? What could happen to my laptop, when leaving it?

COOLING DOWN!

When not working with your laptop (and windows is not doing any update what ever background cpu stressing stuff) your cpu will work less or maybe go into power saving mode. This will make your laptop cooling down in temperature.

This might explain, why the keyboard (when starting it up at room temperature at the morning) starts working after 15-30 minutes - but when leaving it, the laptop will not cool down to room temperature, so the keyboard will start working again FASTER (only 2-5 minutes).

So it MIGHT be a temperature problem?! We don’t know yet.

I tried out the following:

After startup, to increase the cases and laptops temperature faster, i moved my hand fast over the cover to produce frictional heat. This seemed to help a bit, but after a week my case and keys would look very bad xD.

Next step: HEAT GUN

After startup i tried to NOT doing any hard mechanical pressure on my case nor keyboard. Then i SOFTLEY (please do not melt or damage your laptop with a heat gun) warmed up my case and keyboard. After a few minutes (and not 15 - 30 min) my keyboard started working - an evidence of a heat problem?!

Step three: stressing CPU & GPU to produce heat

after i tried out the heat gun, i kind of prooved a heat problem. So i searched for an easy way to warm up the laptop not from outside, but from the inside out - and what are the most heating modules? RIGHT: the CPU and GPU.

I downloaded the two famous programms “Prime95” (stressing the CPU) and “FurMark” (stressing the GPU) and for monitoring of the temperatures “MSI Afterburner”. After starting up the system cold the next moring, again i tried NOT to stress the laptop machanically to exclude mechanical origins of the problem. Then i started the two programms and stressed the CPU and GPU for a while. I kept trying to press the non-functioning keys softly - after a few minutes, the keyboard starts working …. TADAAA another evidence of a head problem? :-)

And now severeal suggestions of the heat causing the keyboard to work again:

The heat could …

1.) (more a mechanical origin)

make the different materials (as metal, plasic and so on) of the mainboard, keyboard cable, outer case to strech in a diffent mass. This could lead to a loose connection to be connected again, so the keyboard start working correctley again .

2.) (more a electrical origin)

make the inner structure of maybe the keyboard controller (which is made of silicon and other metals) to work again - there are many chips on many devices at this planet having heat problems (e.g. devices/chips start or stop working when heating or cooling them). The reason for this also could be e.g. a bad designed PCB layout or not suitable circuit components.

3.) any other suggestions?

Suggestions #1 seems to fit the “screw suggestions” from above. But who knows.

And here comes YOU, the WWW!!! :-)

At the moment, i do not have any equipment, time and possiblilty to search for the heat-sensitive component. :-(

So my question to the WWW: is there anybody who can explore the heat-sensitive componente(s) and maybe also find out a solution for this (e.g. resolder the component with a heat gun)?

A last thing to any Lenovo Employee reading this article:

BLAME TO LENOVO!!! A such great company which stood for good quality, well producted, tank-not destroyable laptops, now started do produce such crappy stuff?

Many people like this gaming laptop very much….but a not working keyboard (on a GAMING laptop)?!?!?!

CMON we’re in the 21st century!!! 1000 satalites crusing around the world, AI coming up, but we cannot fix a keyboard problem???…what else to say :’-(

Ответ на этот вопрос У меня та же проблема

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Alguien ha solucionado, he intentado de todo, ya estoy harto de este problema!

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13 Ответов

Наиболее полезный ответ

hello there, I’d like to say that after I had the laptop for 4 months this problem appeared and them i sent it to the fixing center and after 3 months of that same problem re-appeared and this is really frustrating as I lost my work in the first attempt to fix it because the fixing center deployed a new OP (to check the keyboard)! This is definitely a problem based in this line of production of the Lenovo y520

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some keys didnt work when the bottom cover shut, i try many times but same issues. in the end i put out the RAM cover, the keyboard was flawless

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lemme try this.

из

In my case, it was that I had put the shield in crooked. Causing the keyboard to do weird things when I put the back cover on. If I didn't, the keyboard worked flawlessly.

The fix for this was to remove the cover, reinstall it properly and close the case again.

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This same issue. I found a solution that helps for me. Squeezing bottom left corner of case, something like 2-3 cm under the Fn button. It helps me every time, for now...

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This. Your advice helped me instantly. I don't think the problem is solved permanently this way, but at least I know what might help if it reoccures.

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You are a genius!

I have been struggling with this stupid issue since 2017 I scrolled the internet throughout the year and nothing worked but stressing my cpu on 15% did so thank you, you are amazing 👏🏻

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what do you mean by stressing the cpu by 15%?

из

Hi maan,

i didn't expect an answer after that many years. It is nice to hear, that my research helps you :-)

I don't have this laptop anymore because i changed my job. I hope you will find a solution some time, because this laptop was very expensive.

It is interesting, that after that many years it "fixes" your problem. Usually cold solder joints or heat problems in general usually will break after a certain time. I hope this solution will last 4 you a long time :-)

cheers

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hello peter pan,

if there is a problem with your keyboard that is non-fixable have you tried putting in another keyboard for the same model. i wish you the best of luck

-M

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hello martijn muntenaar,

thanks for you fast answer!

No - i didn’t try out another keyboard - but:

first of all: it’s not only me having this problem, and it’s not only me with a non-fixable keyboard. Replacing the keyboard with the exactley same type definetley WILL NOT HELP.

Maybe trying out a keyboard from another series might help?? But the problem is, that changing ONLY the keyboard is not that simple, because it is fixed with melted platic pins, and maybe non series uppercases won’t fit into this series.

Is there anybody to try this out?

As i mentioned above, actually i do not have any possiblity to try this out. :-(

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Hi, @dreckssau. I have the same laptop and problems you described. I managed to solved it around 2 years ago by removing the three middle screws on the back but the e, g, h, fn, 8, 9 issue has reappeared after all this time. The GPU stress test doesn’t work in my case (although it worked once). Is almost winter here so my laptop is cold which means your theory could work just fine. Have you managed to solve this or discovered anything new? Thank you in advance.

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I have the same issue. Well… lucky for me. I purchased new palmrest with keyboard in amazon. at first it works fine. but after few months the issue re-occurred. so now i’m going to try to remove the ram cover. will get back to you guys once tested.

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Update:

I just got the ram cover removed. It appears to be working fine. Wish me luck. Well if ever it happens again. I’ll be sure to update you guys here.

из

now the keys are working but it is now doubling the characters. LOL

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I removed all back cover screws and removed the metal ram cover. I placed thick wads/rolls of tape behind the letter “E” and turned the unit back over with the cover snapped on only. I pressed hard on the E, G, and H. The keys worked. I also put clear plastic tape over the ram cards to prevent electrical shorts. Sometimes while pressing hard on inoperable keys the whole computer would turn off and Id have to disconnect the battery and reconnect it then it would turn back on. It once went into a disk scan with fragment recovery and I had to boot in safemode to get it to work again. It seems the problem is a multi faceted wear and tear problem with the keyboard. Poor design over time results in a disconnect of the E, G, H, and Fn keys. I originally thought that my daughter spilling liquid on the keyboard was the problem but after complete bottom case replacment the problem was fixed for awhile but returned. Then I found flexing the laptop in certain ways caused the keys to reactivate. I have found the proper bracing and stress to place on the backside of the keyboard to get it to work reliably.

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It's a Keyboard issue, I Will suggest wait for a week and checking if the moisture is dry if not you will need to get the whole keyboard replaced while replacing make sure to get the backlight keyboard only..

Thanks

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Have the same issue. But why we have same key issue, E G H F2 Fn Num8 Num9... Is it connected to one pin, and maybe that pin is broken? Mine happen when my local repairman disconnect the keyboard ribbon cable to repair other part. Then when he connect again, those set of keys not workin anymore.

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I noticed some little dents on the flat cable connecting the keyboard to the mobo, right beneat some protruding components, that may be the blame

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well, mine is working but right shift and ctrl isnt working, i cant uppercase my alphabets with shift (zbntyo) and only with caps. another thing is when i tried to press shift+spacebar, the spacebar doesnt work. i tried removing the ram cover but still didnt work. this problem occurs when i tried to change the ram from 8gb ddr4 2400mhz single channnel to 16gb ddr4 dual channel 2133mhz

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I upgraded the RAM in my brother's keyboard and had a similar issue. If you leave the bottom case off, what happens? If it works with leaving the bottom case off, I might suggest the following fix.

Apparently I had reinstalled the metal shield over the RAM sticks crooked / incorrectly, causing the keyboard to only pick up on control characters (space, tab, backspace).

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i have a Legion Y540-15IRH, keyboard randomly stops working. Only thing that works is the Fn key and space bar (light). I can get the keyboard to start working by going into settings, system, recovery, advanced startup and restart now. when the computer reboots, hit continue and startup now. Then my keyboard will work.

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Thanks to you, I have repaired my keyboard! Hope it will not break for a long time.

I haven't any screws in the lower housing. I put 4x screws on place (photo or if photo not working - top left and right corner + one hole down from them) and now all keys working!

Hope it help for somebody.

Block Image

Edit

Looks like problem is not solved fully, sometimes e,g,h,fn, num 8,9 and _ don't working, but it is 99% better now then before.

EDIT2

Today I have found better place for "activate" keys. This is few centimeters on righ from touchpad. Little strenght put on plastic helps for me.

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