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.

Search found 2 matches

by coolgardie
Wed Sep 01, 2021 2:48 pm
Forum: Questions & Answers
Topic: Card always returns invalid INS
Replies: 3
Views: 8463

Re: Card always returns invalid INS

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.
by coolgardie
Wed Jun 30, 2021 3:07 pm
Forum: Questions & Answers
Topic: Card always returns invalid INS
Replies: 3
Views: 8463

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...
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