Hardware Writing into original Amiibos?

[Metichi]

TL; DR: How to backup and restore original amiibos and not just any blank ntag card.
Edit: How to backup the rewritable part data specifically so the same figure can be used across multiple games.

I was recently gifted an Inkling amiibo and was pretty disapointed to find out I wouldnt be able to use it in Ultimate and Splatoon 2 simultaneously.

A small search provided hundreds of articles and threads about cloning amiibos into NTAG cards, so I downloaded TagMo into a phone with NFC and succesfully scanned the amiibo.

But when I tried to write the information back into the figure, it gives an error for both wirte and restore. Is this an issue with original amiibos and TagMo in general or is my phone glitching out for some other reason?

 

[arcanine]

You can’t. They are write-once on the amiibo part. Only the data part (where the user data gets stored) is rewriteable. Once you have written the amiibo itself, that part of the tag becomes read-only.

 

[Canna]

Amiibo are write once read only ATM until encryption is hacked

 

[Metichi]

You can’t. They are write-once on the amiibo part. Only the data part (where the user data gets stored) is rewriteable. Once you have written the amiibo itself, that part of the tag becomes read-only.

Yeah, but Im interested in storing and rewriting the data part. So I can keep my Ultimate data in my phone while I play splatoon and my splatoon data while I play ultimate, and not have to delete it when Im done with one game.

 

[hippy dave]

What you want is possible, backing up and restoring the save-data, not the identifying data of which amiibo it is. This looks like a 3DS homebrew that can do it. The blurb for datel powersaves suggests that that can do it too. I don't know if there's free software that does it from a computer/phone rather than 3ds. I have yet to see any Switch homebrew for accessing amiiibo data, maybe later.