Help! I'm having similar problem. I have a o3ds was v 10.5, successfully downgraded to 9.2. I'm on step 14 of this guide. I can get into the main browserhax menu, but when I try to launch luma3ds (icon with graphic of blue star), the screen goes black for a few moments and then it reverts back to the normal 3ds home screen. Getting frustrated...what can I do?