A modification of the ReiNand custom firmware
Compiling:
You'll need armips added to your Path. HERE is a pre-compiled version.
Lastly, just run Make and everything should work!
Copy everything in 'out' folder to SD root and run!
Usage / Features:
See https://github.com/Reisyukaku/ReiNand and http://gbatemp.net/threads/reinand-mod-o3ds-n3ds-sysnand.411110
The FIRMs you need are here:
http://www99.zippyshare.com/v/kEIiQl0x/file.html
Credits:
Rei as this is 99% his code (this is no more than a mod)
Everyone he credited on his GitHub :P