well, R4i sdhc official site released the new firmware V1.42b to make their R4i sdhc (Not R4i sdhc 3DS ) support DSi V1.43. Just download the lastest firmware and update your R4i sdhc easily.
Quote from R4i-sdhc.com
To those who have R4i V1.41 and R4i V1.42 card, the update of NDSi V1.43 have already been released, please download the latest kernel to update your R4i card. Upgrade Instruction (2011-07-26)
IMPORTANT: Products labeled "" do not support upgrade for NDSi V1.4.3, we will release the update soon, sorry for the inconvenience.
Download
For R4i sdhc 3DS english version R4i sdhc 3DS firmware V1.42b
Also in filetrip : http://filetrip.net/f25762-R4i-SDHC-3DS-V1...29-V1-4-2b.html
For R4i sdhc english version R4i sdhc firmware V1.42b
other language versions see here : http://r4i-sdhc.com/downloade.asp
Also a update instruction from official site
Step 1
Step 2
Step 3
Step 4
V1.42 changelog
R4i V1.42b Update:
1. Firmware upgrade to support NDSI 1.4.3.
2. Integrate firmware upgrade features. Goto config menu for firmware upgrading.
3. Fix display bug of Korean language.
4. Solved games:
5774 - Tinker Bell to Yousei no Ie (JP)
5773 - Camping Mama + Papa (JP)
Quote from R4i-sdhc.com
To those who have R4i V1.41 and R4i V1.42 card, the update of NDSi V1.43 have already been released, please download the latest kernel to update your R4i card. Upgrade Instruction (2011-07-26)
IMPORTANT: Products labeled "" do not support upgrade for NDSi V1.4.3, we will release the update soon, sorry for the inconvenience.
Download
For R4i sdhc 3DS english version R4i sdhc 3DS firmware V1.42b
Also in filetrip : http://filetrip.net/f25762-R4i-SDHC-3DS-V1...29-V1-4-2b.html
For R4i sdhc english version R4i sdhc firmware V1.42b
other language versions see here : http://r4i-sdhc.com/downloade.asp
Also a update instruction from official site
Step 1
Step 2
Step 3
Step 4
V1.42 changelog
R4i V1.42b Update:
1. Firmware upgrade to support NDSI 1.4.3.
2. Integrate firmware upgrade features. Goto config menu for firmware upgrading.
3. Fix display bug of Korean language.
4. Solved games:
5774 - Tinker Bell to Yousei no Ie (JP)
5773 - Camping Mama + Papa (JP)