Have to say, this card is hot, so when Nintendo 3DS update the system to v5.0.0-11, many users concerned if the r4i sdhc 3ds work on 3DS v5.0.0-11? The answer is yes. But need use the newest firmware v1.67b. Here is the details:
R4i-sdhc 3ds card marked with “v4.5″ and “RTS” which can support N3DS V5.0.0-11 and NDSi v1.4.5 perfectly, please update the firmware to V1.67b.
Actually, when i check some cards official site, find another 2 cards work on 3DS/XL v5.0.0-11 too. they are r4i sdhc dual core and r4i sdhc rts card. Both card is popular in Europe and both card has great features. Seems these 2 card no need any updating and no need any patch, can use directly.