I've been able to run Harvest Moon for 10 minutes and the latest Zelda for 5 minutes (I didn't have time to play longer) so I think I can load roms fine. I can also pass the diagnostic test with these two games on my microsd. But when I try to run the diagnostic test with the test_rom, it always fails. It also doesn't appear in emunand as a game. Has anyone else tried to use the test_rom?