Well today someone uploaded smt iv dlc so I went and turned off my 3ds to put it on the sd card , but it got stuck turning off and I dunno why I did so but I removed the sd card before force closing it off by long pressing the button. When I turned it back on the sysnand said that the sd card applications couldn't be loaded and the exploit didn't load the gateway loader ! ( even when I accesed the sd card on my pc and I could put the new stuff) . So I changed the sd card adapter and it seemed to work. I played some smt iv , saved , changed to fantasy life and played for some time , and when I wanted to save it said that it couldn't access the sd card ! :SS , so I had to turn it off and lose the progres I have done.. Funny thing is that I have opened it again just now and I have saved in fantasy life without problem , and also I have checked smt iv and I haven't lost the progress I have done after this incident hmm So I wonder if this is the microSD fault that has become partially corrupted or something ? should I backup the content and the emunand , format the sd card ( how can this be done deleting the emunand partition too?) and restore everything again?