I recently followed Plailects guide up through part 3 on an O3DS to get it going for my niece. However, when I run luma, it prompts for me to choose lumas options (show which nand), and then i hit start to reboot. it then reboots, back through menuhax, and loads HBL as expected. Then, i run luma.....and it reboots, runs themehax, and goes back to hbl. Trying again yields a black screen. Help?