Hallo Wilson, > I am facing an issue with a Mifare Classic card (this is a dual > interface smart card; contact and contactless).
Alright, then it is most likely not a MIFARE Classic card but a contactless (dual interface) smart card (with ISO 14443-4 interface) that additionally provides a MIFARE Classic emulation. > When I use transceive() to send apdu corresponding to "select AID", it always > return null. Right, as you write here: > 2) Create MifareClassic object using you create a MifareClassic but what you really want to do is open an APDU connection to the card. If your card is a real dual-interface smart card(*) it should also expose an IsoDep interface (ISO 14443-4 / ISO 7816-4). This is the interface you would want to use for APDU communication. br, Michael (*) There could also exist some hybrid cards that have a MIFARE Classic _contactless_ card and an APDU-based _contact_ smart card joined into the same plastic card. In that case the contact and contactless parts would be independent chips and no communication between them would be possible. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en