Laptop Keyboard going crazy. Send help!

[Zapawaf]

I'm not sure if anyone has experienced any of these issues but my Lenovo Legion Y740 just started acting up today.

Some of my keys on the keyboard are doing random things now to include:

 

H – types “+9EGH\P-\”

J – Opens chrome settings for some reason

U – Acts like F11 and full screens things

6 – types “`s56980=” also tries to reload pages. Was doing something else earlier, so this is a new one.

7 – Acts like F11

 

F keys are doing some random things too, but I never use them so it may but what they usually do... as I never use any except F11 from time to time, couldn't tell a difference.

 

What I've done.

1. I know my windows updated a few days ago but I have used it many times since the update, so I doubt that's the issues. Did another update today, didn't fix anything.

2. Uninstalled drivers, and reinstalled them.

3. Grabbed updated drivers from Lenovo.

4. Verified all keyboard ease of use options are and were already off.

5. Disabled hotkeys from bios as per a google search recommendation.

 

No idea what to do next. This is a new one for me.

Any help would be very much appreciated!

[Mnky313]

Have you tried reseating the keyboard's connector to the motherboard? I wonder if something is shorted in the keyboard itself as well, could also be corrupted firmware on the chip that handles keyboard input but I highly doubt it, that would be a weird thing to just happen. Have you also tried on something like a windows installer USB or linux just to make sure it's not the windows install being funny?

[Zapawaf]

1 minute ago, Mnky313 said:

Have you tried reseating the keyboard's connector to the motherboard? I wonder if something is shorted in the keyboard itself as well, could also be corrupted firmware on the chip that handles keyboard input but I highly doubt it, that would be a weird thing to just happen. Have you also tried on something like a windows installer USB or linux just to make sure it's not the windows install being funny?

I have not. I was hoping someone might have a fix I hadn't thought of before I went pulling it apart, but I probably should take a look. Worth a shot at this point.

[Mnky313]

Just now, Zapawaf said:

I have not. I was hoping someone might have a fix I hadn't thought of before I went pulling it apart, but I probably should take a look. Worth a shot at this point.

you could always try a bootable linux USB first, if it still has issues then you know it's most likely hardware related

 

[Zapawaf]

2 hours ago, Mnky313 said:

Have you tried reseating the keyboard's connector to the motherboard? I wonder if something is shorted in the keyboard itself as well, could also be corrupted firmware on the chip that handles keyboard input but I highly doubt it, that would be a weird thing to just happen. Have you also tried on something like a windows installer USB or linux just to make sure it's not the windows install being funny?

So I took it apart and realized I didn't have the appropriately sized screwdrivers to take it all the way apart. Upon removing the back cover, I did find a screw stuck to the back plate that looked an awful lot like a hard drive screw. Sure enough, 1 drive was missing a screw. Reseated the keyboard plug that I could reach (I assume there's another buried on the other end), turned it on for kicks and giggles, and so far seems good to go. I'm betting on that screw messing things up for me because the keyboard ribbon was nice and snug before I reseated it.

 

So if anyone has this issue in the future, ask them if they're an idiot who swapped drives at some point and lost a screw.. lol. Appreciate the help!

[Mnky313]

55 minutes ago, Zapawaf said:

So I took it apart and realized I didn't have the appropriately sized screwdrivers to take it all the way apart. Upon removing the back cover, I did find a screw stuck to the back plate that looked an awful lot like a hard drive screw. Sure enough, 1 drive was missing a screw. Reseated the keyboard plug that I could reach (I assume there's another buried on the other end), turned it on for kicks and giggles, and so far seems good to go. I'm betting on that screw messing things up for me because the keyboard ribbon was nice and snug before I reseated it.

 

So if anyone has this issue in the future, ask them if they're an idiot who swapped drives at some point and lost a screw.. lol. Appreciate the help!

Good thing you at least found what the problem was