Keyboard and trackpad are unreponsive?
For some reason my macbook keyboard and trackpad are completely non-responsive. I know for a fact that the keyboard and trackpad are not the problem.
Here are some other things I have tried:
1) External keyboard and mouse work perfectly fine. I can log into OS X and everything functions normally with an external keyboard and mouse.
2) I performed an SMC reset using the built in keyboard. As I said, I know the keyboard is good.
3) I can not reset the PRAM using the built in keyboard. I can reset the PRAM with the external keyboard.
4) I have tried to leave the Macbook working till the battery dies then leave it for one night without charging and afterwards restarting it with power supply plugged in and they worked but afterwards they in s random startup they return unresponsive (I have tried this for two times and worked and I trying my third time now)
Please don't fixate on replacing the keyboard and trackpad.
The keyboard works before the chime (SMC reset) and does not work after the chime (can not reset PRAM). It seems like the logic board is turning off the keyboard when it chimes. Not sure what could cause this. Does anyone have any ideas?
I had the same problem and solved it by simply holding down the power button till the computer switched off, then turning it on again so it went into recovery mode and voila it just worked!
由 Kalemaroni 完成的
I had the same problem and solved it. I connected an external keyboard and a mouse and it worked fine, meaning the usb drives have no problem connecting. Then I went into the System Preferences > Startup Disk > unlocked with user password > clicked the internal Macintosh HD and restarted. After it rebooted, trackpad and keyboard worked fine.
I've previously tried the recovery mode and PRAM reset several times and it did not work. Actually, I've ran into this problem twice before and had the Apple Store replace my entire hard drive and all, and when this happened once again, I was really fed up. Anyways, I hope this solves your problem.
由 Myoungah 完成的
This type of issue can happen on Windows systems due to virus infection.. I'm not familiar with Mac Systems but if you think this advice could help give it a try. The specific device driver gets infected and USB external input devices use a generic driver so that could explain why external input devices work.
由 Juan 完成的
Hi! I just runned into the same problem ... thanks to the posts above I realized that the reason why my keyboard was no longer working, it was just the trackpad being mechanically blocked ... a simple mechanical push, a bit stronger than usual (after a couple of trials) worked out the issue!
由 Mauro 完成的
Thanks, Myoungah - this fixed my current issue with the keyboard and also a months' long non-working trackpad. Apple Genius bar said I'd have to get a new module to fix that, but your solution fixed them both!
由 jztex 完成的