do you have documentation/examples for Mifare Desfire Cards of VP3300? We can work with mifare classic cards but we couldn't figure out how to use the mifare desfire cards

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do you have documentation/examples for Mifare Desfire Cards of VP3300? We can work with mifare classic cards but we couldn't figure out how to use the mifare desfire cards

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Hello team, I was able to check the demo for the NFC Mifare classic. The problem with the demo is you need to press a button to open the nfc, then you need to press another to authenticate and finally press another to read. With our app we need to be able to do all this steps without user interaction. Apart from that we need the app to be listening all the time for an incoming nfc tag. That’s why I was asking you last time if there’s something like a listener similar to the one you have with the QR Reader (setHardReaderListener). I would really appreciate if you can help me with this. Thank you.

asked in T20 by jason Q&A Engineer (11.2k points)

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my main issue for now, is managing to handle Ultralight EV1 tag. for that we are used to send raw APDU. I have tried, to use the nfc.transmit method, but I suppose it needs to receive more than just the basic apdu code, and it's more low level than I expect. Basically I'm used to transceive : 0x60 -> GET_VERSION 0x1B... -> PWD_AUTH 0x30... -> FAST_READ ... But here passing those value give me errors. I had no issue using the m1_authenticate m1_read_block m1_write_block If you have some sample code, managing to read/write or send the GET_VERSION apdu to an ultralight code, it should be enough for me to take after.

asked in T20 by jason Q&A Engineer (11.2k points)

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Actually, the SDK provided with the device is working on Android Gradle 7.0.3 which is quite old. We tried to upgrade the Gradle to 8.4 version but we faced issue. We would like to get confirmation from you that its possible to upgrade Android and Gradle version and still use your SDK. also can we upgrade the Android firmware in order to use flutter for some app development ?

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Tps530 Do you have some sample code of how to read Mifare Plus EV1(5) and Mifare DESFire using your SDK?

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asked in TPS550 by Joppa Q&A Freshman (102 points)

jason · Answer 1

please refer the guide :

http://service.telpo.net:8091/index/user/fetfile?key=O36HqepLoXDZrawj

do you have documentation/examples for Mifare Desfire Cards of VP3300? We can work with mifare classic cards but we couldn't figure out how to use the mifare desfire cards

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