Open Gallery. Select a picture. Menu. Set as. You can choose homescreen, lock screen or both. Once you've dne it once, it's a 30 second procedure. (Remember to save the picture once you see it in the boxes showing how it will look in landscape and portrait. Backing out of Gallery won't make any change.)
Mine still doesn't work
 
	 
 
		 
 
		 
 
		 
 
		 
 
		
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