Heres a new release for the Nintendo 3DS, heres the release info:

DS Recovery Tool by Joel16 is a tool for backing up, restoring and wiping 3DS data. It’s somewhat similar to a recovery menu, that assists the user in backing up and restore sensitive and unique data.
Features:
* Back up LocalFriendCodeSeed, SecureInfo, movable.sed, HWCAL0.dat and HWCAL1.dat.
* Dump original LocalFriendCodeSeed from data. (This is different from copying the seed from nand.
* Dump original SecureInfo from data. (This is different from copying the SecureInfo from nand)
* Restore LocalFriendCodeSeed and SecureInfo from memory.
* Restore LocalFriendCodeSeed and SecureInfo from backup.
* Verify LocalFriendCodeSeed and SecureInfo.
* Wipe temporary titles, expired titles, TWL titles, pending titles, demo launch infos, config, parental controls and CTRNAND.
* Format (delete) SMDC root and NAND ext savedata.

via https://pdroms.de/nintendo-3ds/ds-re...ds-application