11-29-2017 03:46 AM
I am facing problem and I am kindly asking this forum some help. The letter A not working on my keyboard. All others are working. Windows 8.1 single language is my S.O.
I currently have Windows updates being approved.
I have a paid firewall software/antispam. This is a headache. I used then the virtual keyboard to solve some situations where none keyboard was closely available but it is workaround solution and does not help for logon/login.
I am right now using an external keyboard to write this kindly request to the community.
Things I have tried: I already turn-off, remove battery and charger and, pressed power button for 10 sec. Place battery and A/C charger back and no result. I aldo run a full testing using Lenovo System Center and I got ok and gren mark.
This issue or incident happen few days ago. There were some Microsoft Windows updates I got via web.
I indeed have also restored the system to few days ago prior to such Microsoft Windows Updates . Also this unfortunatelly not work and I also cleaned any possible dust on keyboard. Needless to say this "kind and trick problem" emerged during the black fryday.
Thanks in advance.
11-29-2017 07:14 AM
I was thinking of probable single key hardware failure seing that external keyboard and onscreen keyboard works with the letter a key. You can check if online keyboard test would fail to send input signal of the same key.
Booting the machine in a live media, to test the key should allow us to isolate operating system issue.
The same can be tested in the BIOS creating password (not saving since this is just to test the key) so best not to save changes and simply manually restart it instead.
Update us how it goes.
11-29-2017 07:38 AM
Well. Hi there.
Looks like I cannot be able to test your 2nd suggestion and firts cause I cannot boot on media as laptop S400u has no CD/DVD. I can boot and laptop works except by this keyboard.
These options with links to website in Russia (ru) does not see to me a possible alternative as I do not try any link that has Russia, so I know you seen to try to help but my logical sense does not lead me there..
Thease are not safe as I might presume cause they were not developed by either Lenovo nor Intel.
So, if I will not follow your advises you might be mad or think I does not value your answer but .
Let me see what a Lenovo Moderator might suggest.
11-29-2017 08:26 AM
Above online keyboard test can be an example (you can use anything that you are confident with) but the reason for such procedure is to check if the keyboard can actually send an input.
Live media do not have to be on an optical disc as it can also be done on USB and then again if you are not confident booting on similar operating system like linux base systems to isolate software issue then BIOS testing of the key can be an independent step that can be done.
You can also consult your trusted IT professional regarding the suggestions whichever that helps to isolate a hardware issue with the key against the softwares.
11-30-2017 08:15 AM
Craneum, the keyboard tester that Spidey101 recommended is a safe site. I visited the site and it did not raise any suspicious alerts with my anti-virus or malware software. If you are not comfortable visiting a Russian website then try this keyboard test website that is located here in the U.S..