The java feature allows us to add applications that may not exist on the original features of the phone innate. Many options that we can add / install on the phone either free or paid. Many applications that have a background of a picture or word in the image format (.png). For those bored with the look of the original background, we can replace the background with our own photographs or other images according to taste. Follow this step:

• Download the java application to your computer
  
• Open the file (.jar) using winrar
  
• Search for an image file (.png), note the name and size (resolution)
  
• Prepare a file that will be used to change background. File type must be equal to the original image file, if not please change it first, could use photoshop or other editing software you have
  
• Replace the file named according to the original file congenital application, notice the small capitalization must be exact
  
• Replace the background with a file that has been prepared by "drag & drop"
  
• Close the winrar
  
• Send the file (.jar) to mobile
  
• Install