Hi, this is my first experience with Arduino and it’s forum. I have RFID reader “RC522” and Arduino mega2560, I downloaded “Arduino RFID Library for MFRC522” from: GitHub - miguelbalboa/rfid: Arduino RFID Library for MFRC522 .
I did it’s example DumpInfo And DumpInfo, they worked great with new card. Also I have second card that used before with a RC522 that I don’t know it’s codes, So when I used this Card in DumpInfo example I don’t have problem but in ReadAndWrite example it has problem and tell: “Read block A(4) : the first of the sector TWO : no match - write don’t work fine”
Is there any way to return my second Card to the factory setting?
I attached response of my 4 tests.
Any help would be greatly appreciated,
1.txt (5.04 KB)
2.txt (5.05 KB)
3.txt (646 Bytes)
4.txt (725 Bytes)