820-3787 No Image NOT SOLVED

[G.Beard]

Worked and now is blank again.

Tried new screen, PRAM reset, removing SSD.

EDIT: Changed WiFi card and IO cable. Think one of them was hanging POST.

Fixed

 

[dukefawks]

Remove SSD and so a PRAM reset. I have had cases where a bad OSX was causing this issue to return.