820-4924 Screen Backlight ONLY comes on when lid is closed then open

[Roshon]

820-4924 the Screen Backlight only comes on when lid is closed then open if lid is open and you hit power the mac boots up with no display until you close the lid and open then it comes on what is the problem thanks

 

[Yoel Ren]

Wrong lcd year model, for sure

 

[2informaticos]

Be sure to have compatible LCD assembly.
Post SMC_LID level when the problem occurs.