Not sure what you're trying to say here, but the 2i works perfectly on n3ds xl with two patched.
I couldn't get it to work on my N3DS even with whitelist v0 on both NANDs. While it is recognized it gives the force restart error message.
The Acekard 2i never worked on N3DS, as it was blocked somewhere around 4.x, and thus should also not work with an older whitelist.
This only works for cards that at some point worked on your device and then were blocked.
I have no idea how you can possibly make the AK2i run on N3DS because I read multiple times that it can't and I was also not able to.
The twl firm patch that you apply does not enable the original R4 DS cartridge.
See above. A card that never ran on said console on a lower firmware can also not be patched to do so.
NEED...GUIDE...NOW for reiNAND
Reinand is idiotically easy. Download, unzip, set Ctr to reinand.dat, done. No need to mess with firmware, no tampering with files, just unzip and go.