Macbook Keyboard fritzing out

Discussion in 'MacBook' started by mohicanspap, Mar 31, 2012.

  1. mohicanspap macrumors regular

    Jul 19, 2008
    White plastic Macbook Unibody 2nd gen internal keyboard is registering as if I am holding down both "option" and both Shift keys down. Not too sure if this is a hardware issue or a software issue. Trackpad was acting funny too but was able to fix it with a restore but not a fresh restore. Any suggestions like replacing a ".kext" file? No wishes to perform a full restore. Minimal time usage would be prime.

    Thank you!
  2. ixodes macrumors 601


    Jan 11, 2012
    Pacific Coast, USA
    It's highly likely your keyboard is failing. A friend of mine with the same model just went through a similar experience. Once he replaced the keyboard, all was back to normal. I'm sorry I cannot remember the cost involved, but knowing him if it was high he would have just bought a new laptop.
  3. mohicanspap thread starter macrumors regular

    Jul 19, 2008
    That's unfortunate. This keyboard did experience a small water spill but it was immediately tended too. But who knows that how much damage happened with that small time gap. I popped off all the plastic key pads and blasted it with some compressed air just to get any moisture out. Still no luck. I am trying a little terminal work with the AppleUSBTopCase.kext file. Maybe if I can uninstall it and reinstall it I can know for sure it is a hardware issue :T
  4. malman89 macrumors 68000

    May 29, 2011
    Before you said anything about a water spillage, one thought that crossed my mind was perhaps your battery was either installed incorrectly or has swelled a bit and was pushing up against the keyboard/trackpad.

    My Late 2006 MacBook had it happen before and I got a replacement battery out of warranty. I think it's happened again, but I'm just dealing with it and I don't think they would replace it again. It was barely noticeable the first time. Took a bunch of browsing for it to come up as a potential issue and then when the battery was out (but AC plugged in) typing worked just fine. I leave my laptop plugged in for far too long (99% of the time, always) so oh well.
  5. mohicanspap thread starter macrumors regular

    Jul 19, 2008
    Success!!! So i got everything back to normal. Seemed to be a driver issue with the AppleUSBTopCover.Kext file. Just a little terminal work to uninstall and reinstall did the trick. And of course a large amount of permission changes in Disk Utility. But thank you everyone for your comments and suggestions! :)
  6. AppleGirl97 macrumors newbie

    Sep 28, 2012
    My Macbook Pro is having the same problem, it seems that every time I try to use it the screen shakes and my trackpad clicks random things and flies around my screen. Ive tried rebooting but nothings helping! its not the key board. I can type completely fine.

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