This is the latest kernel version of R4 Ultra flashcarts. Release date: 9/25/2010.
After that time, they didn't release any new version of their own kernel. Instead, they modified AKAIO, which supports new games:
http://filetrip.net/nds-downloads/flashcart-files/download-akaio-for-r4-ultra-1-8-6a-f33282.html
The manufacturer's website had been shut down since January 2013.
After that time, they didn't release any new version of their own kernel. Instead, they modified AKAIO, which supports new games:
http://filetrip.net/nds-downloads/flashcart-files/download-akaio-for-r4-ultra-1-8-6a-f33282.html
The manufacturer's website had been shut down since January 2013.