got it working on r4i (r4i-sdhc.com) had to use an older version of multicart then update playinng pokemon black eur now
thanx to op for this (but please next time make clearer instructions)
try formatting your micro sd (i have the same r4i-sdhc.com) mine didnt have a red box though its also a dstt clone so i doubt wood will work on it i'll try now for you!
nope dont work either game tried allready tried both versions of sonic c.c nope not a thing even tried downloading each on from the wifi ds game update thing nope!!!