I am going to be taking my phone to the apple store tomorrow because my volume down button is not working. What is the best way to back-up as much as possible about my set-up so I can get the new phone set-up easily tomorrow afternoon? Also, what is the easiest way to safely unjailbreak? Will I lose all my apps and savegame data? I am somewhat new to the iPhone (I have had android phones until I got the iP5 a few months ago).