R4i sdhc 3ds new firmware V1.55b released, support 3DS DSi V1.44
Just as the title says, today r4i sdhc 3ds flashcart (r4i-sdhc) team released the new firmware V1.55b. With this new firmware, you can make your r4i sdhc flashcart work on DSi V1.44b now, this is good news for players. let's take a look.
[TD]Note：The R4i-sdhc marked with "3DS" can support the NDSi V1.44, please update the firmware to V1.55b. other R4i-sdhc doesn't support NDSi V1.44 yet, we will resolve this issue shortly.[2012-04-01][/TD]
r4i sdhc 3ds V1.55b
Feel free to update your card then, and you should know you need to use a DS console or a non-update DSi or 3DS console to do the update.
Source: R4i sdhc 3ds