Forget windows, it's not worth the hassle - if this is going to work then Linux is our only option. This here seems interesting: http://www.linux-mtd.infradead.org/f..._ubifs_extract I've only got kernel 2.6.31 on linux laptop so not sure if I can follow the instructions. This WOULD help in extracting and copying the f/w to say a memory card but i'm unsure if we can package the files back into a bin file? (I don't have the skill to do that!) EDIT:::::: santiago read this: http://wiki.maemo.org/Modifying_the_root_image N900 IS NOT JFFS2 DESPITE THE NAME!