I just received my Gateway in the mail, ordered from eachmall. In the package there were the two cards without stickers, an unused red sticker, and an unfolded box. No instructions or other material was provided. From the pdf instructions included in the 3.0 package, it seems like the blue card is the one with black plastic and that one is no longer needed? Is it safe to follow this guide, with no prior setup, files, or modifications made to my 3DS, GW red card, or 3DS SD card? Also, is the emuNAND only for accessing the eShop? What is the purpose of backing up the sysNAND and implementing the emuNAND?