I have this huge problem and what happened was this: Okay, so I never update my 3DS but its connected to the internet, so it nags me every day, and I always say no. But then one day, I went on my 3DS and saw it it was already updated, even though I never eve pressed yes. I soon found out that it was my cousin. See, I let them play games on my 3DS. I've owned it for a really long time, and now, it's freaking ruined. THE WORST PART IS, THAT MY COUSIN HAD NO REASON TO UPDATE IT, AND THEY CAN MAKE INTELLIGENT DECISIONS, THEY DON'T EVEN CARE. I even asked, and all I got in response was a silent shrug. My rage is SO HIGH RIGHT NOW. SO now, I'm wondering if formatting system memory, will reset my 3DS back to it's former version, or this the system update permanent and I'm screwed forever because I was actually nice and let somebody play my 3DS.