Your shiny brand new 3DS console just arrived, it is on a good FW version, and maybe it's even your first 3DS console ever. Now, one of the biggest fears of new users is accidentialy updating the SysNAND, rendering their 3DS incapable of running exploits needed for homebrew, CFWs or flashcarts. That fear is not completely irrational, judging from the sheer number of "Am I screwed?" threads here. But, don't worry, I'm here to help. I'll explain how FW updates find their ways to your system and how you can be as safe as possible, even if you let someone else access you N3DS console. By now, I assume you know why SysNAND updates are bad and what the difference between SysNAND and EmuNAND is. Let me add to this that updating your FW also hurts its resale value and shouldn't ever be done without consideration., no matter what flashcart you're using now.This FAQ is for FW version 9.0...9.2, but it should also be applicable to earlier versions and most probably even to later ones. Thanks go to GBAtemp members who provided most of the information in my earlier thread found here As a matter of fact,. No, that thing won't update itself from turning it on, looking at it or accidentially pushing a button on the backside. You are specifically asked, and usually it requires multiple button presses to confirm. Even if somehow you already have the dreaded update nag at system startup, there's a way to get rid of that.