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.
Do NOT power up the board.
All LEDs must lit.
Some of them (8 I suppose) will be at max.
If one LED stays off, corresponding line is broken (to CPU); or bad contact on the socket.
nvm. issue gone. ultrasonic the machine its all good. touched up first line of balls. i only seen the first couple go bad... not sure what else also someone tightened the screws real hard loosened them a bit.