Hacking [Q] Backup Mii Plaza and Streetpass save?

[The9thBit]

On account of not having FBI on an unlinked 9.2.0U emuNAND on a New 3DS, I have to reformat emuNAND. Is there any way at all to backup and restore my Mii Plaza and Streetpass Plaza data? That's really all I have to lose, but I really don't want to lose that.

 

[Mega-Mew]

Yes you can with savedatafiler.

 

[naddel81]

does savedatafiler really support streetpass saves?

 

[SterneSchreien]

No need to format.

 

[Zidapi]

Yes you can with savedatafiler.

does savedatafiler really support streetpass saves?

No, it doesn't. Nor can you use extdata save/restore tool.

 

[wsquan171]

The save of Mii Plaza is stored in NAND. You can manually backup the save by following that "manual system transfer" thread.

 

[naddel81]

ok, backup is possible and re-injecting into a new (formatted) 3DS?

 

[Zidapi]

The save of Mii Plaza is stored in NAND. You can manually backup the save by following that "manual system transfer" thread.

Forgot about that, thank you.

ok, backup is possible and re-injecting into a new (formatted) 3DS?

@The9thBit Yes, follow this guide.

 

[naddel81]

good to know, thanks!!!

 

[MelonGx]

I think
- Decrypt both source and target's NAND
- Export source Mii Plaza & StreetPass saves if you know where they are
- Import the saves to your target console's NAND
- After the save import completed, re-encrypt target NAND and restore it
will work.

(Edit)
Oh, what #8 said is what I said above.

 

[Captain Skank]

Is there absolutely, positively no way to do this on sysnand 10.3? Even with memchunkhax2? I don't even want to transfer to another 3DS. I just want to back it up, system format, downgrade, then restore the save.

 

[Captain Skank]

Or better yet, a way to delete whatever save data is resulting in a corrupted 9.2 sysnand (I assume it's something that was added in 9.6, as I have been able to successfully downgrade to 9.6).