Answer to "MacBook won't boot at all"Wao....bridged it and it powers on now! What should I do next ? Should I order a keyboard or a connector ?
Answer to "MacBook Pro: External display works, LCD display not recognized"There has been an issue with the chip for this MacBook. I just called Apple, I know silly, of me to even consider after all these years, but I was outside the "recall" time for this model, expected though. Poster up there has the ticket though . Use it as a desktop. Good luck and here's the link! http://gizmodo.com/5061605/apple-confirms-failing-nvidia-graphics-cards-in-macbook-pros-offers-free-repairs-and-refunds
Answer to "won't knock on"Ummm, it sounds like you put the display on but the cables are pinned between the frame and the display. Just take it off and be careful to pull the cables all the way through. I normally use a spudger or some other long stick to make sure the cables go all the way through. Good luck...
Answer to "replaced broken screen and now LCD doesn't work?"Check to see that you didn't cover any of the holes with the double-sided adhesive. Dimming of the display could be because you might have covered one of the sensors. Just a thought.