Galaxy Ace won't see my SD card. I have to un-mount and mount to see photos. New photos, I can see right away. But when I close off the pictures and go back to view them again, they are gone, same with videos. New app(s) will not load without many attempts and forget about them saving once they do download(via wifi). I reset the phone to factory, formated the sd card, really does nothing. My contacts are still there, some photos are still there, they will not delete. "My Files" folder will not let me delete some files and old app folders. What am I missing? Be kind, I'm new at this crap.