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Repair guides and support for Lenovo's line of consumer-oriented laptops, the IdeaPad series, first announced January 2008.

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Keyboard stopped working after cleaning

Hello everyone

I recently cleaned my Lenovo Ideapad 100 15.6 inch screen and keyboard and after that my keyboard stopped working. To clean the keyboard, I applied some alcohol cleaning solution on a micro fiber cleaning cloth and then rubbed it across the keyboard. I did this 2-3 times. This process was done while keeping the laptop off and disconnected from power supply

After 5-7 minutes, I turned on the laptop and everything was working fine at first, but later some of the keys stopped working. I noticed that only those keys which I pressed after turning on the laptop were not working.

As of now, 60% of the keys on my keyboard are not working and I have no clue on how to fix this.

While troubleshooting, I also tried plugging in a bootable USB drive to check if the problem is with the hardware or the OS. The keyboard didn't work here as well.

I'll be really grateful if anyone of you can guide me to a solution to this problem

Thanks in advance

Answered! View the answer I have this problem too

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@tommyvercaty It certainly sounds like the alcohol caused problems, but that's what I personally use myself specifically because it dries quickly and doesn't leave residue on electronics. You did it the right way; applying the alcohol to the cloth and not just spraying it on the keyboard too, so it's a bit puzzling why it should have caused such major problems with your keyboard.

Did you use standard household (i.e., 70%) rubbing alcohol, or something more suitable; they usually recommend 90% or higher for electronics parts cleaning.

You might still give it a shot at drying out the components with a hair dryer; go over the entire keyboard to evaporate any accumulation that might have somehow accrued. If you can open it up to expose the internals that would be even better.

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Hey. Apologies for the delayed response

I used a display cleaning solution which has 70% alcohol. I had it handy I used it almost every time before. I remember shutting down the laptop before doing cleaning it but I did not remove the battery while cleaning it. I tried drying it in sun (with battery removed) but that also didn't work out. So I guess, the alcohol solution did damage my keyboard

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Well I think you have done the damage in the keyword because as you used the alcohol cleaning solution. Or you can check for the issue in the keyboard driver if your keyboard driver is outdated driver then you should try to updated your driver.

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Hey Jhon

Thanks for the quick response. I've checked all the drivers and I also checked the keyboard with a typing utility. only the following keys are working

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All other keys on the keyboard are not working. So I guess I'll have to assume your first guess that I may have damaged the keyboard with the alcohol solution. Do you have any tips on some quick fixes that I can try before sending my laptop for keyboard replacement?

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Tommy Vercaty will be eternally grateful.
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