R4iSDHC fix added to first post:)
heres how to do it
V1.4.2 hardware upgrade：http://www.r4i-sdhc.com/fwup142.rar
1. First, format the SD,go to here to download the latest kernel 1.37b.
2.Unzip and copy the files(R4iMenu,moonshl2,moonmemo,r4.DAT) to the root of MicroSD card.
3. Go to here to download the dsi(1.42) upgrade package of purple r4i-sdhc.
Unzip and copy the files(fwup142.nds ) to the root of MicroSD card.
4. Insert MicroSD card into r4i-sdhc card, insert r4i-sdhc card into nds\dsl\dsi\dsill\dsixl
5.Turn on console and press "A" button to run the upgrade file fwup142.nds. Note:When upgrading the r4i-sdhc card, it is not allowed to turn off power or pull out r4i- sdhc,otherwise it will damage the r4i-sdhc cart[/SPOILER]