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.
When I first got this Mac it sometimes had a chime and came on but it would cycle to black screen and them would display login screen. I shined a light on screen sometimes it would just be backlight not coming on, but the next time it would be no display at all. I didn't do anything to it...