I hope that the tool gets updated someday to support 7.X.X process.
Only a little true story to show that this tool actually helped someone.
My GF bought a used japanese 3DS here in Brazil to play some imports last year. It was discounted because it has a faulty charger conector (so we use the cradle to charge it) and the 3DS had parental controls configured to prevent eShop access but the kid's father and the kid himself didn't know anymore the code. Instead of asking for the question answer (that maybe was any junk only to get to the end of setup process), or trying to contact Nintendo (here in Brazil we don't have a phone service to solve those matters) she found
VampireSwizzy program and used it.
So on her behalf I have to thank VampireSwizzy for making the GUI for the program