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.
820-00281-A board came in dead condition.
when disconnected battery and plugged adapter fan spin and shows a battery symbol then off.
PPBUS G3H =12.5 volt
PP3V3 S5 = 3.3
5V S4 = 5 /PPVCC CPU =0.6Vwhen powering up