I hope someone's still here... @TurdPooCharger I've tested with both .cht and .chx files (don't know the actual difference).
.cht appears all messy in the cheats screen, so I can't understand a thing. .chx files don't even let the rom start, the 3ds crashes and reboots.
I don't really need it...
SOLVED!! Very simple :)
Download the encTitleKeys.bin from that website that has Encrypted title keys and paste it and replace in the Base Directory Path (Standard is C:\Users\Usuario\Villain3DS). Your file, like mine was, is probably empty and has 0Kb.
DONE!!!
It's not the movies or games downloads that I would worry about, like breaking into networks, downloading encrypted things, spying on network traffic. I have seen so many "Top Secret" seals on files when I was a kid
I was obsessed with finding UFOs, a surprising amount of US files where stashed on computers in other countries, China back in the early 90s omg sooo much