I ' ve recently come back to 3 DS hacking . I have an Old 3 DS that I installed a 9 lh on about 6 months ago . I ' ve since then followed Plialect ' s guide on updating a 9 lh . Now , what ' s new to me is that I can now boot the device without the SDcard in . If I ' m reading the updateguide correctly , this is CTRNAND no idea what that stands for , btw ? What ' s peculiar is that when I boot the device this way , the icon for health and safety is replaced with an FBI logo . If I boot with the SDcard installed , the health and safety app is replaced by FBI , but NOT the logo . Anyway , I ' d like to update FBI from 2 . 2 . 1 to the newest version 2 . 4 . 2 and if possible replace the icon just like in ' CTRNAND ' mode . How do I go about doing that ? By the way , if anyone has any tips on anything else I ' d might want to update , feel free to fill me in !