This is for Atari Flashback 9 and Atari Flashback 9 Gold (same file works on both)   1. Download this file atari_update.img.zip   2. Unzip it (will uncompress to 36MB file named atari_update.img) Put it on an SD card, insert into console, power on.   3. Push LEFT on the joystick to start the update process once it's done, bush RIGHT to skip the prompt Reboot! The SD card option is now enabled.   To add ROMs, it's like how the Flashback Portable worked. Make a GAME folder in the root