Hey! So, Im trying to fix my friends MB. Its a white 2.16 Core 2 Duo. Keyboard, power button and trackpad stopped working. After powering it on by shorting some solder points on the Motherboard, USB externals worked perfectly. So I got a new top case cable from ifixit. This got the power button working again but alas the KB and Trackpad remained dead. Funny thing, power button turns the macbook ON, but once its on, the MB ignores all further pushes, even holding it down to try and force shutdown doesn't work. I went to system Profile and on the USB tab, there is no mention of the keyboard nor mouse (internal hub) External mouse and KB did show up. Does anyone have a clue what I should do next??? Thanks in advance!