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How to set a picture from camera roll as wallpaper in ios 7
Open your " photos " by tapping on its icon.
Tap on " camera roll.
" all pictures you save or take get into your " camera roll " album.

pick from the following. [i] Ensure your camera roll is empty and securely mounted to your computer. Choose " picture now " from the list of available ones, and tap " next " to begin the setup process.; [ii] Tap on " import screen " from the menu that appears. Import scanned pictures from your camera roll.; [iii] Your photos and images can also be sorted by dates and pick a year, month or day when your image was taken or saved. Pick an image you want to set as wallpaper.; [iv] Find the picture that you want to use and tap on it. Look at the shapes you have created with your camera roll to see which kind of arrangement is best.;
[iii]