AnsweredAssumed Answered

Can't remove NTAG213 protection

Question asked by on Dec 23, 2019
Latest reply on Jul 8, 2020 by Simone Del Gobbo

I'm using NFC tags based on NXP NTAG213.
Using NXP TAGWRITER I set a new password and than I try to remove protection, but the error "TAG can't be unprotected" occures
As I try to remove just the password, the AUTH0 register remains set to 0x27, so I can't change the configuration registers nor write 0xFF to AUTH0 - I/O failure occures.
Is there any way I can remove the password and protection using TAGWRITER?

I tryed it with multiple tags and the ffect is the same. At the beginning the tags are unprotected. The PROTECT bit is set to 0, CFGLOC is set to 0 too.