Umm, when I generate xopads (I select XORpad Generator Options and then NCCH Padgen) I get this error:
Opening seeddb.bin ...
Could not open seeddb.bin
9.x seed crypto will fail
Opening ncchinfo.bin ...
Number of entries: 2
0: /0004000000098500.Main.exheader.xorpad (1MB
Using keyslot: 2C
SD failure or SD full
NCCH Padgen: failed!
Press B to return, START to reboot.
By the way I didn't had a Decrypt9 folder on my SD card so I've created it, and my sysNAND is updated to the newest version.
I've been following this guide from step "covert .3ds files to .cia". I have probably put the ncchinfo.bin in the wrong place (it is in Decrypt9 directory in the root of my SD card.
https://www.reddit.com/r/3dshacks/comments/40etaz/tutorial_dumping_3ds_carts_and_converting_3ds/
EDIT:
When I place the file somewhere else it isn't even detected, so it probably is in proper directory.