I recently got a Supercard SD and upgraded to firmware 1.63. It plays Nintendo DS game fine, but whenever I load up a GBA game, the Nintendo screen pops up and just turns white after that. This happened to me for Gunstar Super Heroes and Super Robot Taisen OG. I'm aware of the GBA compatibility list for the Supercard and while Super Robot Taisen isn't compatible, Gunstar Super Heroes is, so I'm just wondering if I did something wrong.
Also, Pokemon Sapphire would only load up to 640kb before freezing and forcing me to turn off my DS. It is also supposed to be compatible with the Supercard. Is there something that I have to do to the games before I can play them? Or are they just bad?
Any help would be awesome.