Nokia 1600 Lcd going off after few second

Nokia 1600 Lcd going off after few second nokia 1600 blue display after some time 1600 lcd blank 1600 display blank 1600 white display nokia 1600 after few second blue display 1600 blank display nokia 1112 display blank after five nokia 1600 display light off after few seconds 1600 lcd blue screen nokia 1600 blue lcd few second