Keyboard and trackpad are not functioning
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. Please don't fixate on replacing the keyboard and trackpad. I've tried replacing them multiple times with the same results.
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.
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?
Questa è una buona domanda?
4 Commenti
Forgot to mention this... I also tried completely reinstalling OS X and still had the same problem. The problem existed in the OS X install DVD environment as well.
da Chuck
Also I forgot to mention, when I go into the settings and I click on the trackpad settings it tells me no trackpad found.
da Chuck
Tried booting into a Linux Mint live dvd and I am having the same issue.
da Chuck
I've tried top cases / keyboards that came from both 2009 and 2010 models. (This style of macbook was only made in 2009 and 2010).
da Chuck