Nintendo updated DSi firmware to V1.4.2 few days before. Almost all flashcards were halt except Cyclo iEvo. It means, if you are a R4 3DS cards users, you can’t update your DSi console to V1.4.2, orelse, the R4 3DS card will can’t run.
R4 3DS card hacked DSi V1.4.2
But this problem was solved yesterday. Most R4 3DS cards successfully broke Nintendo DSi V1.4.2 on May 11th. By download and install V1.4.2 update patch, many kinds of r4 3ds cards can run in DSi V1.4.2 console now. These R4 3DS cards contains: R4i SDHC 3DS from r4i-sdhc.com, R4i Gold 3DS from r4ids.cn, R4idsn 3DS from r4idsn.com and R4itt 3DS from r4itt.net.
