I bought an R4i 3DS SDHC RTS Revolution from ndsgamer. I loaded the V1.7.3b firmware from this site (http://www.r4i-sdhc.com/downloade.asp). I have 2 3DS machines. One is the standard 3DS and the other is the 3DS XL. Both are running firmware V6.2.0-12u and both do the same thing. I click the icon to run the R4 card and it loads to a white screen. After a second or so it goes black and thats it. Am I missing something? Are these R4 cards for real or is it a scam?