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 of your SD card. You may need to rename your ROMs and avoid any special characters. Both .bin and .a26 files should be recognized.
This thread has some relevant troubleshooting info, and you might even find some other downloads there.
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Atari Flashback 9 FIRMWARE for adding games to SD card
in AtGames Flashback and Portable Consoles
Posted
i cant get it to work.