История для "New backlight doesn't work..."

The LCD from my Samsung Galaxy Core was broken, I planned to replace it. But after installing it it didn't work, well it looked like that. The backlight didn't work. So now is my problem turned around. Does anyone know how to fix this? I already compared both the LCDs but it looks just the same... Or is there maybe a way to combine the two LCDs in one working LCD, maybe any other options?

Устройство:

Samsung Galaxy Core

Статус:

open