Category "mifare"

mifare 4k classic write does not work as expected

I want to write to a mifare classic 4k, using the following APDU command (UPDATE BINARY): APDU = {FF D6 00 20 10 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

Read and write text to NFC Card from android

I currently trying to make Login System using NFC Card. The idea is, Android will write username to the NFC Card, then when the card is scanned on Android, the

Hex String to Byte array conversion java

I know this question is asked a lot of times but please hear me out. Previously I have tried following methods to convert hex string to byte array. say my key

re-writing uid and block 0 on Chinese (supposed to be writable) MIFARE 1K card in python

Here is my issue: my RC522 module is connected to my Pi2 via SPI and I'm able to read all [64 blocks / 16 sectors] using both MFRC522-python and pi-rc522 librar