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Hello there,
I'm not that familiar with ISO 14443-B tags, and first of all I don't know in which category I should put this post.
This morning I encountered an ISO 14443-B tag, appearing as a "14443-4 Smart Card" on my phone.
The "14b reader" command displays the following:
pm3 --> hf 14b reader
#db# ISO14443B Timeout set to 38656 fwt
UID : XX XX XX XX
ATQB : 00 00 00 00 91 71 71
CHIPID : 00
App Data: 00 00 00 00
Protocol: 91 71 71
Bit Rate: 212 kbit/s PICC -> PCD supported
Bit Rate: 212 kbit/s PICC <- PCD supported
Same bit rate <-> required
Max Frame Size: 128 bytes
Protocol Type: Protocol is compliant with ISO/IEC 14443-4
Frame Wait Integer: 7 - 4096 ETUs | 38656 us
App Data Code: Application is Proprietary
Frame Options: NAD is not supported
Frame Options: CID is supported
Tag :
Max Buf Length: 0 (MBLI) chained frames not supported
CDI : 0
Thus the protocol is 91 71 71.
The command "14b info" fails with
pm3 --> hf 14b info
no 14443B tag found
Any idea what is going on?
I am using a recent (~1 week) version of iceman's patch.
I will try to investigate but I am surprised that the "info" command shows "no tag found" while the tag hasn't moved away from the antenna...