Hi guys, I've looked far and wide but seemingly have tried most all of my sd card readers for hard modding an o3DS with no success. I've tried 7 different readers (An HP Printer, 3 Laptops, a Desktop, and two usb 2.0 adapters) and none of them work. I wanted to know what my options are for these readers and specifically why there are those that work and don't. Is it even the SD portion of the spec. that matters here? Or should I be looking only MMC supported types, due to the embedded-MMC in the 3DS. All of my computers are on Windows 10, and some show the 3DS eMMC unit as a drive upon SD Card insertion - however with no media in it. Others simply don't get to this stage at all. Why is this? Is it the OS? Is the speed on these chips, to keep up with the 3DS clock? Is it a special type of mode? And is there a name for such in a spec.? WinDiskImg32 issue? I do have a raspberry pi 2 (model B) and Arduino Uno, and wanted to know if the GPIO pins or similar is duable without purchase of a separate adapter for NAND Dumping/Writing. There was a similar-ish process for the gateway unlocking of a locked eMMC controller, but required a different solder point or two on an XL unit and I don't believe was used for dumping. In-all here, is this possible on one of these units? Does length of the wires actually matter for interference coming from the board to the SD Adapter? Someone said they had a total of no more than 15 cm, or ~5in. and I just trimmed my down for safety. The main hardmod guide referenced taking out the SD Reader from USB power for boot into the blue dump screen. Then plugging it in. I've noticed however, that I get a different "error code" on the 3DS depending on the card reader I use. Is there a "correct" error code I should see? Additionally is there a handshake of some sort that limits me to that adapter, or disconnects operation entirely when unplugged from the reader (while the blue dump screen has been presented). I'm assuming not, as its a controller, but I don't know what information is exchanged or even what actual spec. is being used; Another way of putting this: boot with Reader#1 -> plug into other reader (that has power) -> dump. Is that possible/ideal? I've done as extensive a search on all of this on gbatemp but keep coming up short with scattered posts, some varying with their credibility/legitimacy. Any help/info would be appreciated, even if you only know a certain part, please feel free to list experiences, but please keep this on topic if conversation continues. Thanks!!!