Use Advanced Ace Hack Kit. Everything is explained in the manual. Read it carefully in full.
I recommend using Ubuntu live CD to run the hack.
In recovery you can backup the entire phone, it's called a nandroid backup. If you have clockworkmod recovery you can do this from ROM control.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality.
Are you a developer?
Copyright © xda-developers. Hosted by Leaseweb