That's it as for FS backup. Personally I discovered Phone Explorer and Beyond Compare, this combo fully suits my needs and is superb for tracking phone changes and aswell backing up. Yet I have a question, is the FS backup sufficient for fully restoring the phone state from any situation, for example if I flash in new firmware that's not as functional as expected, and I decide to revert to former version, can I completely delete new FS and write back old FS ? In another words if FS is the only place where all firmware information is kept. When flashing .fbn and .mbn files, the only action performed is are decoding the content and writing to FS or do flash files contain additional information? What about EROM and SEMCBOOT ? Sry for many questions I'm just trying make clear how thinks work.