Reply To: MIFARE – Desfire EV2: Authenticate with 6A81 Response

Forum MIFARE general topics and applications MIFARE – Desfire EV2: Authenticate with 6A81 Response Reply To: MIFARE – Desfire EV2: Authenticate with 6A81 Response

Re: MIFARE – Desfire EV2: Authenticate with 6A81 Response

30. October 2019 at 10:03
Hi Jacques,

Error 6A81 is not a MIFARE DESFire EV2 error code. I assume it comes from the transport layer. In doubt I would check the error on Global Platform specification.

If you use the PC/SC interface, it is also very important to check the user manual of the reader. Very often you must use so called wrapping commands for a specific card type. Please check this for your reader.

The TapLinx team

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