Chosen Solution

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

@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.

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 Or you can check for the issue in the keyboard driver if your keyboard driver is outdated driver then you should try to updated your driver.