Our Online Store have the new products: RFID antenna board. Currently it can work with JC10M24R and JCOP4 card chips.
Compared with normal cards, the antenna board module has a smaller size and fixed holes, which is easy to integrate in the IOT(Internet Of Things) project.

How to lock the card "Check Card Cryptogram failed"

JCIDE related questions and answers.

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How to lock the card "Check Card Cryptogram failed"

Post by powsnugly » Sat Aug 08, 2020 3:23 pm

I connected some java card using pyApdutool, all action will return "Check Card Cryptogram failed".
What is the status of the card and how can I do that.
Thank you.

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