Recent questions in TIcket Validator

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1 answer 407 views

When using Firebase libraries I encountered a problem, google play services and google play store are not found in the operating system

asked in T20 by jason Q&A Engineer (11.3k points)

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1 answer 422 views

How to insert the T20 wire into the post of bracket

asked in T20 by jason Q&A Engineer (11.3k points)

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1 answer 538 views

Is there a different sdk or documentation for the vp3300 card reader?

asked in T20 by jason Q&A Engineer (11.3k points)

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1 answer 468 views

We would like to use the face recognation with Telpo20 device. May you help me , where can I find this feature in the demo, otherwise may you send me a demo with it?

asked in T20 by jason Q&A Engineer (11.3k points)

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1 answer 418 views

We cant find the RFID Scannersolution in the Democode. This function is available for our devices?

asked in T20 by jason Q&A Engineer (11.3k points)

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1 answer 516 views

are there any instructions to remove the backplate? we are trying to install an sd card

asked in T20 by jason Q&A Engineer (11.3k points)

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1 answer 857 views

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 (11.3k points)

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1 answer 637 views

Is there a plugin to work with Flutter?

asked in T20 by lcampana Q&A Freshman (102 points)

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1 answer 693 views

is there a way to hard reset TPS530?

asked in TPS530 by jason Q&A Engineer (11.3k points)

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1 answer 1.3k views

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 (11.3k points)

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