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.
Hi, this thing is trolling me, the phone was water damaged and c4200 was corroded and barely holding on, changed it and no joy, checked D4020 and it's fine, attached the screen and checked chestnut, 6v0 was present, 5v7 was there -5v7 was low at -3v2, I replaced chestnut and voltages are fine...