For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
In my case I had shorted 3V42 rail because of SMC. I replaced the SMC and took it from 3476 board. After SMC replacment board power one time and load OS X but now it is no power anymore.