Hacking White Screen when Loading Games?

[buddamilk]

Hi,

I recently bought a R4i-SDHC Card for my little brother. (http://r4i-sdhc.com Red Box).
I formatted the SD Card with a SD Card formatter, got the newest firmware and put a few games onto the card.

Some games work while the majority does not. When I boot the games, both screens of my NDSi XL turn white (in rare cases black) and nothings happens then.

Is there a reason and a solution for this?
Any help is appreciated.

Greetings,
buddamilk

PS: Sorry, I'm not a native English speaker.

 

[mammastuffing]

Try a different SD-card.

 

[Edrian]

Perhaps something is wrong with the games you downloaded?

 

[buddamilk]

Now I tried a different SD Card and a different download source for the games.
I still do get that white screen on most games.

Is the R4i-SDHC a bad card?

 

[mammastuffing]

Are you sure it's a legit card and not a clone? Does that label match those on http://r4i-sdhc.com/?

 

[buddamilk]

Yes, it does.