Need to Upgrade jailbroken iOS 3.1 to 4.2 or 4.3
I Just started here, have a basic question. I have a jailbroken iTouch with iOS 3.1. I wanna upgrade it to iOS 4.2 or 4.3 and then preferably jailbreak it again. Now, the question is whether I will lose all my saved game data and music and all the other stuff on my iTouch if I upgrade it and after that I jailbreak it. Will it be like all my installed games, songs, videos will get deleted on doing the upgrade?? Also, in case I will be losing the data any way to prevent that, as in any 3rd party softwares which can help me out here. Thanks in advance for the help guyz.