Que version del SleepMode usas? ya que no veo las lineas del Wallpaper...te faltan estas lineas...
Código:
;---------Automatic Wallpaper Changer------------------------;
;Up to 20 images can be specified, put them in [IMAGE_FOLDER]
;[WALL00]: image1.jpg
;[WALL01]: image2.png
;[WALL02]: image3.bmp
;[WALL03]: image4.gif
;[WALL_CHANGE]: 0x0F; minute interval, 0 to disable, valid range 1-60 in hex
;[WALL_MODE]: 0x01; 1=sequence by time, 2=random by time; 3=sequence by day (must load 7 images)
;[WALL_CHANGE_KEY]: 0x04; double click of this key will cycle through your wallpapers
;----supported phones for auto-wallpaper change-------------;
;[PHONE]: 0x00;
0x00;//W810_R4EA031
0x01;//W800_R1BD001 
0x02;//K750_R1CA021
0x03;//W700_R1CA021
0x04;//Z550_R6CA009 
0x05;//W850_R1KG001
0x06;//K800_R8BF003 
0x07;//K810_R8BA024 
0x08;//W880_R8BA024 
0x09;//W610_R6BC002 
0x0A;//W580_R8BA024
0x0B;//W660_R8BB001
0x0C;//W550_R4CB020
0x0D;//W200_R4HA014
0x0E;//W300_R4EA031



;Do Not delete
Una cosa mas..que es lo que quieres que se visualize?? el wallpaper o la imagen de fondo del modo sleep...