title: APDU command to read credit card data from visa Paywave NFC enabled card using Samsung Galaxy S4
body: <pre><code>  byte[] APDUCommand = { 
              (byte) 0x00, // CLA Class           
              (byte) 0xA4, // INS Instruction     
              (byte) 0x04, // P1  Parameter 1
              (byte) 0x00, // P2  Parameter 2
              (byte) 0x0A, // Length
              0x63,0x64,0x63,0x00,0x00,0x00,0x00,0x32,0x32,0x31 // AID
          };
  
  
      Intent intent = getIntent();
      Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
      IsoDep iso = IsoDep.get(tag);        
      iso.connect();
  
      byte[] result = iso.transceive(APDUCommand);
  </code></pre>
  
  <p>I am using the above code to read VisaPayWave NFC card details(card holder's name, expiry date, card number etc) using samsung galaxy s4. The output that i am getting is [106,-126]. I think the APDU command i am using is not correct. Kindly suggest the correct command. </p>