MacBook keys not working

Hello,


I've had my MacBook Late 2009 for a long time and I never had this happened to me. I dropped my water bottle and it got only a few drops on my MacBook internal keyboard. I quickly wiped it off and I was already experiencing problems. Sometimes when I pressed the shift key, it would produce a symbol instead of capatilizing the letter. I turned it off for the night and set it in an upside down 'V' position on my table. The next morning, I turned it on and tried to log on by typing my password but it just made the 'Funk' error sound. Some keys like the 'o' and 'enter' key made spaces. Other keys moved the text cursor in different places. The keys we're working but the computer was not recognizing the key presses. I Googled it to see if anybody else had the problem, and someone did and said to get a program called "KaraBinder" which maps the keys or something. I got it and ran it and surely my keyboard started to work. It only works when the application is running and likes to randomly close. I can't type more than 2 numbers without it crashing. I then have to go into the application and press the "Reload XML" button. The left shift key doesn't work also which I use a lot. I was told it was something where the keycap got messed up. I would like to know if there was a way (Without replacing the keyboard or giving it to Apple) to fix it, because I would like it to work again without an application that has flaws.


I can connect an external keyboard and it works fine. This way I can type my password. I also have other accounts that don't have a password.


I have tried most things. I have tried resetting the PRAM but that hasn't work. Also, when the keyboard isn't working, the trackpad will only right-click.

This is very odd to me, but I'm guessing it has something to do with the key map of the keys or the computer not knowing what key is being pressed?


Specs: MacBook (White, Plastic) late 2009 (13-inch)

Latest OS Yosemite 10.10.3

2 GB 1067 MHz DDR3 Memory

NVIDIA GeForce 9400M 256 MB


Thanks in advance. (I'm writing on this computer with an external keyboard but I do have access to other computers)

MacBook, OS X Yosemite (10.10.3), 13' Late 2009

Posted on Apr 24, 2015 1:54 PM

Reply
14 replies

Apr 25, 2015 9:11 AM in response to 4729034873

Is there a way to get back to an earlier OS?

http://forums.macrumors.com/showthread.php?t=1759298

"The trackpad and keyboard do not work inside of Yosemite!

They both work in Mavericks and Windows partitions, even in Recovery Mode/Console. As soon as I get into Yosemite, the cursor is in the upper left hand corner and doesn't move."

". I dropped my water bottle and it got only a few drops on my MacBook internal keyboard. I quickly wiped it off and I was already experiencing problems."

Expect problems further down the road.

"2 GB 1067 MHz DDR3 Memory"

Minimal to be running any new OS.

Apr 25, 2015 12:52 PM in response to 4729034873

In your original post you said:

"I can connect an external keyboard and it works fine. "

Then in this last post you say:

"I also tried an external keyboard but it didn't work."

So is this fault you're having progressing? Like a disease?

Originally when you said:

" I dropped my water bottle and it got only a few drops on my MacBook internal keyboard."

I thought oh, oh, that going to result in logic board problems:

Here's my standard rant on spills:'=

Also here's my standard blurb about a water incident:

"Whenever a liquid spill occurs the first thing that has to happen is the laptop should be shut down immediately. All power must be removed as soon as possible.

It is especially important that the battery be disconnected and removed.

No attempt should be made to start/restart the computer since this could potentially damage the logic board beyond all repair.

All affected parts must be removed from the laptop and carefully and closely inspected. Any involved area should be marked for special treatment.

Then all affected parts would be washed in deionized water in an cycling ultrasonic cleaner and blown dry with compressed air. (In a water spill the deionized water is probably not as critical. Depends on the mineral content of the water.).

This is especially true of the large chips on the logic board. Liquid can wick under them and cause havoc for weeks if not months and years after the incident, depends on the liquid..

The logic board should be placed in a drying/dehumidifing oven for at least two days. Longer depending on the spill.The keyboard is a separate matter.


This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

MacBook keys not working

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.