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I have placed the bios in the retroarch system folder as 5200.rom but it doesnt work. someone idea's
I am using a gamepad
All I can recommend is that, are you're using the correct bios? Launch RetroArch (outside of Dig) then load Atari 5200 (Atari i800) core then scroll down to information then click core information and check the following:
Thanks, i look at it and i think i had the wrong, i used the checkum to take the right one.