I own factory unlocked iPhone 4 and I want to upgrade from 4.1 to 5.1.1. The process: 1. I must backup my iPhone with iTunes. 2. Upgrade to 5.1.1 over iTunes. 3. JB using Absinthe. 4. Restore backup. The 4th step will restore my apps (Notemaster with all notes, FruitNinja, etc.), all contacts (phones, names, etc), camera pictures and music/video. Is this correct? Is there serious risk of losing any data?