Step 1- Click the Settings icon on your iPhone
Click the icon that says “Wallpaper”
You can now choose either your Wallpaper folder or your Camera Roll to choose a picture for your wallpaper. I will be using the Wallpaper folder for this example.
Choose the picture you would like to use.
After you have selected a picture, you will be able to move it into the desired position. When you are finished hit the “Set” button.
That’s it! You have now set your lockscreen wallpaper!