Оригинальный сообщение: hectordtruong ,
You have corrosion on your LCD connector, and/or the backlight coil is out. You basically have to restore the connection on the LCD with a fine-tipped soldering iron. It is usually the 3rd pin from the right, bottom row that controls the backlight. If this looks BLACK, then bingo there's the issue. Along with this, it could be the backlight coil as well.