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.

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Open About This Mac press the System Report looking under USB section do you see your keyboard and Trackpad listed in the driver sections

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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.

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