ASUS ASUS MeMO Pad HD 7 ‏(ME173X)‏ Manuel D’Utilisation

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MeMO Pad E-Manual
Adding a wallpaper on the lock screen
Swipe the time and date panel to the right to view the wallpaper and widget 
panel, then tap 
 and select a wallpaper from Gallery or Wallpapers.
Adding a widget on the lock screen
Swipe the time and date panel to the right to view the wallpaper and widget 
panel, then tap   and select a widget.