3 
2 Keyboard and Trackpad non Functional
I have an a1534 macbook which i replaced the battery in along with a new upper case and IPD and Keyboard ribbons. Upon rebooting i get no functionality of the Keyboard or Trackpad other than the power button. I have tried re-seating all the cables. SMC and PRAM reset. I have also tried reinstalling factory OS and still nothing. The parts are all verified working so im at a loss at this point. Machine boots and runs fine with external keyboard and mouse. Any help appreciated.
crwdns2934109:0crwdne2934109:0
crwdns2889612:0crwdne2889612:0
0
Open About This Mac press the System Report looking under USB section do you see your keyboard and Trackpad listed in the driver sections
crwdns2934271:0crwdnd2934271:0 DanJ crwdne2934271:0
No but i also see t he same thing on a fully functional macbook. I do see the usb hub and external keyboard and mouse. No click on track pad no caps lock light.
crwdns2934271:0crwdnd2934271:0 nsmenke21 crwdne2934271:0
@nsmenke21 - Do a search for both within the report they are there somewhere, Apple used a second hub for the internal Bluetooth and stuff.
crwdns2934271:0crwdnd2934271:0 DanJ crwdne2934271:0
I see a USB 3 and USB 2 hub
crwdns2934271:0crwdnd2934271:0 nsmenke21 crwdne2934271:0
You did the SMC/PRAM resets using an external keyboard, right? If not, try that. Then, try unplugging the battery from the motherboard and holding the power button for about 30 seconds, see if that helps any.
I see that you replaced the Keyboard ribbon. Do you still have the old ones? Can you try with that?
crwdns2934271:0crwdnd2934271:0 Britt crwdne2934271:0
crwdns2934275:03crwdne2934275:0