Startup Red Green Blue Display Test
Got this fro eBay. badly advertised, admittedly selling as faulty. Anyway, got it today and instead of showing the flashing folder icon, I get a display test? It flashes R, G, B. Then four black to white scales. vertical lines too.
Pulled the charger cable, got an apple loading screen from the Yosemite installer.
Placed my hand near the bottom right area of the upper case (near trackpad) screen comes back in.
Throughout all of this the screen flickers brightly then dimly randomly.
Do I need a new display?