Everything I download from Cydia, acts all haywire. Nothing acts like it should, nothing loads correctly, etc. I downloaded free homescreen 2.0, it doesn't work. I got winterboard, and everytime I select/deselect a option, if doesn't work when It resprings. I want to reset my firmware, but I want to keep all of my save files for my games, Like the sims 3, Zenonia, Need For speed, Metal Gear, etc. is that possible?