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.
With "charging ok" do you mean it charges/load macOS, but no image on internal LCD?
Or just charging battery, or turning on the board.
Is very difficult to understand what you've wanted to say in the first post.
Do you get CPU core voltage at least?
You can use 01598 power on sequence; available on the forum.