Please do not update your DSi to 1.4.3 (2011-06-30)
Please do not update your DSi to 1.4.3 until we release update file for R4i-SDHC. Thank you.
IMPORTANT: Products labeled "" full support version 2.0.0 N3DS console, please download the Firmware Update of R4I-SDHC 3DS and be used with V1.40b kernel.

 

R4i-SDHC is a SLOT-1 flash cards for NDS console series (R4i supports DSi). They are upgrade versions of R4 SDHC with multi-media features which can support SDHC memory cards and run most games and homebrews. They have widely been owned by many NDS player user