How would I check that the card is in the OP_READY status?
I don't think the card reader is the problem since it still works with other cards.
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Search found 2 matches
- Wed Sep 01, 2021 2:48 pm
- Forum: Questions & Answers
- Topic: Card always returns invalid INS
- Replies: 3
- Views: 14552
- Wed Jun 30, 2021 3:07 pm
- Forum: Questions & Answers
- Topic: Card always returns invalid INS
- Replies: 3
- Views: 14552
Card always returns invalid INS
I was sending test commands to my applet on the card when it just stopped working. The card returns SW 6D00 (Invalid INS) whenever I send a SELECT APDU or any other GP or ISO command. If I use a CLA that's not GP or ISO it returns SW 6E00 (Invalid Class). A>> T=0 (4+0000) 80F20000 7F A<< (0000+2) (1...