[Question] How to write/change UID of NFC MiFare 1k using the adafruit NFC shield.

[carlosr]

Well, the title says most of it.

I've been looking on the 4 expamples that the libraries have, and i have not found a clear way to change the UID of a card. I've read some of the guide, about the sectors, blocks, etc. This is trully a fascinating area, but its still abouve my skill set.

Anyways, is there an easy way to write a UID to a card?


Greetings.

PS- im using I2C libraries.

[adafruit_support_mike]

I'm pretty sure those are burned directly into the chip during fabrication. That's the easiest and most obvious way to prevent spoofing.

[carlosr]

There has to be a way to change the uid sector

[Franklin97355]

There should be something here... https://www.google.com/search?q=change+ ... age=1&rlz=

[thefatmoop]

Late response, but look around on eBay and you can find mifare tags that allow anything to be edited.

I'm mainly curious if the adafruit mifare reader can edit the unlocked uid cards.

Also
Can the adafruit reader act like an active tag?