tl;dr japanese - you are able to add/remove ROMs from the Famicom Mini, effectively CFW. This should also apply to the NES Classic. This requires no special hardware, just a USB cable and Windows PC. This utility overwrites the ROM in your Famicom Mini, so be warned you could end up with a paperweight.
USE WITH CAUTION DANGER ACHTUNG (article in Japanese)
http://honeylab.hatenablog.jp/entry/2017/01/05/215302
USE WITH CAUTION DANGER ACHTUNG (article in Japanese)
http://honeylab.hatenablog.jp/entry/2017/01/05/215302
Last edited by mooglazer,