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Hello! I would like to know if the UID of the ring is rewritable? Thanks!
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Hi @Frodo, the NTAG213 doesn't allow UID modification.
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Just to add, most (if not all), passive NFC devices do not allow their UIDs to be changed manually by anyone except the manufacturer. Being able to do so poses large security risks depending on the use. Some of them can randomly generate a new UID upon each activation, but as far as setting a specific one, that is generally not possible.
