1.) I want to know if there is any other way to do a fw backup beside hardmodding, because it is not possible to backup 1.0E using cubic ninja (1.1E). (I will definitly do a hardmod later, but yeah.. I just want to know it.) 2.) I want to be able to update/downgrade to as much fw versions as possible: 2.1) Which fw version can't I get using a cartridge? 2.2) Where/How can I get the needed files since I can't download them by using 3DSNUS. I am not able to get them using yifan's method, Am I right? 3) If there are fw versions which I can't get using a card and if they are older then 4.X.. 3.1) I am still able to install the files? And if yes.. How can I do this?