I'm just wondering where does the parental code is stored. I'm going to explain how to recovery parental code w/o master code. I found the code on system setting save. it's not encrypted like psp. Use godmode9 and go to sysnand/data/unique id/sysdata/ 00020200 for jpn 00020210 for usa 00020220 for euro https://3dbrew.org/wiki/System_SaveData Open 00000000 file with hexview mode then go to offset 000060F4 or D0F0. then you can see some secret. POC screenshot here. Warning: Spoilers inside! I confirmed this on my Japanese new3ds. maybe the offset is bit difference on other region. if so please comment and let us know. Thank you. Need more investigating.