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.
I have a board (820-4924-A) without any signs of corrosion and no liquid spilled on it. From one day to another it didn't turn on.
The light of the Magsafe connector turns green and then orange. The board draws 350mA with a disconnected battery.
I have measured the following...