I am confused. What was the problem you were having to conclude the board was the problem? I am having issues right now with my LCD screen(goes black randomly and don't want to come back) FaceTime camera working well, speakers too so is the LCD. No connectors were loose and I am getting picture on the display cause I can see it with a flashlight so definitively is a backlight problem, my question is what does this board do to see is something I should test before ordering a new LCD.
Were you able to fix your problem? I am confronting the same issue. The screen is flickering(the image jump and jump all over the screen) Both LCD I have tested so far are broken inside, so I don't know if this flickering is caused by the broken LCD or by the connector. Let me know, thanks!