Please help me troubleshoot a stuck SHIFT key?

[kiwidesign]

Hi, I found this thread because I’m experiencing the same problem on my M1 MacBook Pro. I’m a junior developer and I use this computer for remote work. This issue started a few days ago. I’d worked through the night and the next morning when I tried to pick up where I left, my computer acted like the shift key was stuck, selected a large portion of code in my editor, a lot of chaos really. I decided to restart it but then it logged me out as I could not enter my password in the correct case. I spoke to Apple support and they had me reset the SMC but to no avail. After several restarts and using an external keyboard to gain access, it temporarily stopped. Then it got started again barely 24hrs later. I’ve turned on the accessibility keyboard and relocated the shift key using Karabiner to the fn button but now that frequently brings up the emojis and makes the delete button act up. I thought I might find a solution here. What’s frustrating is this computer is barely 8 months old.

Hey dude, I'm happy to say that I FINALLY just found a solution for my problem, but most likely it's not what's wrong with yours. You might just have a faulty unit, and suggest that you replace it while it's still under warranty.

As for my problem, after a ton of troubleshooting I was able to pinpoint the issue to a faulty Wacom driver, so whenever the SHIFT start acting up I just fire up Activity Monitor and kill com.wacom.TabletHelper, and the problem disappears instantly. (pinging @beckpeck idk if this works)

 

[Bazmacx]

Hey dude, I'm happy to say that I FINALLY just found a solution for my problem, but most likely it's not what's wrong with yours. You might just have a faulty unit, and suggest that you replace it while it's still under warranty.

As for my problem, after a ton of troubleshooting I was able to pinpoint the issue to a faulty Wacom driver, so whenever the SHIFT start acting up I just fire up Activity Monitor and kill com.wacom.TabletHelper, and the problem disappears instantly. (pinging @beckpeck idk if this works)

Hello,

I seem to have the same problem! I recently updated the latest Monterrey beta and ever since then, the shift key issue started and became progressively worse! Just like you I believe it’s a software problem. My MacBook is 2019 16inch, so it doesn’t have the butterfly keyboard.

I stumbled upon a workaround; activating the caps lock key. However, that doesn’t work all the time.

Please help

 

[nikos_abel]

Hi people!
I recently got a MBP 15" mid 2012 (unibody), and I came across the same Left shift stuck problem,
although it might be the right one too - I'm not so sure now...

The MBP had Catalina 10.15.7 installed, but in a somehow "strange" way;
It had 2 drives, one was the actual, the other was named "Catalina" (nothing inside), and both of them
where visible as Hard drives on the desktop.

I used migration assistant to copy my profiles from another MBP Time Machine backup.
I deleted the old user, all was perfect.

I opened it and installed my 2x8Gb RAM modules, to upgrade it from the native 2x4Gb that
it had (the only hardware I messed with).

After that, I noticed that it asked for the last catalina security update, so i did the upgrade.

After this, the stuck shift started. I'm really not sure that the shift key issue was not present
before the migration or the update, but I/m sure it didn't appeared to me before these.

Anyway, I have tried the sticky keys solution, it worked temporarily but after a few minutes or even
seconds, the issue reappeared. It was not permanently "pressed", it was just most of the time.

So I decided to make a clean catalina install, to start from scratch, booted in recovery mode,
to find that the Recovery Mode version was the Lion OS.

I formatted the drive, and step by step I have now Sierra.
No luck, the stuck shift key is even worse.

Anyway, I've tried most of the proposed solutions that I have found here or other forums,
not one of them has worked - I still have to upgrade to Catalina so I can use the last
version of Karabiner, in one last attempt to disable the internal keyboard and use an external one
that i'm sure that is working perfectly (USB or Blue Tooth)

The reason I told my story, is that I came to agree with kiwidesign, that this is a software issue somehow.
To support this opinion, I have to mention that when in the Recovery Mode, all keys, including the shift
key, are working seamlessly. Right and Left Shift, perfect. Caps Lock, perfect.

Does anyone has a new proposition or found some solution anyway?
I am ready to get another internal keyboard to replace the actual, but I'm not
so optimistic and I'm afraid that replacing I might damage further the MBP,
and I 'll be stuck with a completely broken laptop.

 

[nikos_abel]

Soory, double post, cannot delete it haha!