All I want to do is launch GW without using internet. So I've been following all the videos rather then reading all the different long tutorials like Mr. Mario and stuff. So far I've got the red card working with my .3ds games able to play on my 3ds and XL. I also downgraded it as well. I remember watching videos about launching that emuNAND or whatever it is on the icon to the left of downgrade and people talking about it but don't exactly know what to do. All I want to is play without worrying about the internet and eventually do stuff so I can access the e-shop etc. I used a fresh SD card and used the 2.7 Omega launcher data on it's roots. I then installed everything else on my micro SD card. However I didn't format it because I have GB's of multiple games already installed. Anyways I put it in the blue card and try to launch Deep Labyrinth but get SD/TF Card Error so I can't get into GW mode. What am I doing wrong? What do I need to format or do whatever NAND I need to before I start saving too much games?