What should I do
I downloaded this: DSONE SDHC Evolution V1.0 SP6_1222 (eng)
For my DSONE SDHC
I tried playing the patched pokemon black and it started freezing, so I thought it was just that game hasn't been fixed yet.
Then I tried to play rhythm tengoku gold and it froze every time i loaded...
Tried loading patched black EU rom in supercard dsone with most recent firmware. Once it froze before the first battle with your "friend" and the second time right after the initial "welcome to pokemon" monologue.