The reason being, I only have 1 SD card handy right now. The one that came with my 3DS. So as soon as I am done with the letterbomb exploit and installing the HB Channel, I want to put it back in my 3DS. So can I do everything I would want to do such as using Homebrew, Emulators, and USB Loaders with out a SD Card. And instead of using a SD Card for everything, use a USB Thumbdrive for Homebrew? Here is all my questions so you guys can answer them in order. 1. I only have the 2 GB SD card that came with my 3DS. Can I use that to install the Letterbomb exploit? 2. If yes, Can I return to using my SD card with my 3DS or do I need to initiate the Letterbomb expoit each time I turn my wii on? 3. Since I won't be using a SD card after using the exploit. Can Anything be used with USB a Stick? Homebrew, Emulators, Backups? No need for a sd card after the hack is installed? 4. Can I use any USB Thumb Drive? as long as its formatted to NTFS and it fits into the USB port? Becuase I have a ton of 8 and 16GB Sony USB Thumb Drives lying around.