After testing All Flashcard, R4i Dual core is the first one which support 1.44 Firmware, they don't need any upgrade, and it pass the latest 1.44 firmware, that is amazing. We have test M3i zero, Original Acekard 2i, R4i SDHC 3DS, R4i Gold, R4i TT. The result is No all the r4i flashcard support 1.44 Firmware. Such as the Classic R4i Red and R4i Gold still not support 1.44 Firmware yet.
R4i Dual Core is the first one which Supports Nintendo NDSi 1.44 Firmware, Don't Need any update or Upgrade for R4i Dual Core. That Means Same Kernel, Same Games will work in NDSi or NDSi or NDSi LL very well.
When Nintendo 3DS 3.0.06 Firmware come out Few months ago, R4i Dual Core also was the first one supports That Firmware.
R4i SDHC Team Upgrade Kernel Frequent, it has supported Most of Newest Game. When Nintendo Upgrade Again, will R4i Dual Core support The Latest Firmware, I promist if R4i SDHC Team no Break, It will support the Next New Firmware. Let's Hope it come ture. http://www.consolepart.com/