So I'm making this tutorial in order to help some people who maybe have the same problem I had, and it was so troublesome until someone came and helped me to solve it, and it is so simple actually . So I want to make it easier step by step, so you shouldn't pass all the trouble I had. We will need: A Windows PC. HxD Hex editor. SD card reader or something similar. emuNAND tool MAKE SURE YOU HAVE A IMAGE COPY OF YOUR SD CARD IF SOMETHING GOES WRONG, I'M NOT RESPONSIBLE IF SOMETHING ON YOUR CARD GETS MESSED UP, SO PLEASE FOLLOW THIS GUIDE CAREFYLLY. Step 1: Insert your SD card to the PC, it should show MTCARD_EMUNAND.Step 2: Open HxD as Administrator. Warning: Spoilers inside! Step 3: In the Extras tab on the top click open disk. Warning: Spoilers inside! Step 4: Uncheck the read-only checkmark and select Removable disc # (DO NOT SELECT THE NAMED SD CARD UNDER LOGICAL DISCS!!). Warning: Spoilers inside! Step 5: On the right of hxd (0 Sector, offset 000000000) the text should say MTCARD_NAND. Warning: Spoilers inside! Step 6: put your writing cursor in front of that and type "GATEWAY"IT SHOULD NOW SAY GATEWAYNAND. Warning: Spoilers inside! Step 7: SAVE.Step 8: Exit HxD and use emunand tool for whatever you wanted it for, it should recognize the SD card and start dumping/injeting properly.Once you're done you should undo what you use hxd again and rename the "GATEWAYNAND" to "MTCARD_NAND" and save that.Special thanks to LameNobody for this protip, it was very helpfull.