In the setup guide it says "If you only have access to a 3DS, it is important that you update your DSTWO's firmwarebefore you update the firmware on your 3DS." What if the 3ds is already has the latest firmware? I just bought a new 3ds xl(not shipped yet) and im pretty sure it's going to come with the latest firmware. Can I still do it? Also about the OS that wasn't explained in the set up guide. The OS is in a folder, should I move it over to the microsd in the folder format or in single files?