   int currentBalance = 0;
 
   digitalWrite(readLedPin, HIGH);
-  
-    
+  lcd.clear();
+  lcd.print("READING ...");
+  lcd.setCursor(0,1);
+  lcd.print("Scan your card");
+  
   success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength);
 
   if (success) {

        {
          // Starting of a new sector ... try to to authenticate
          Serial.print("------------------------Sector ");Serial.print(currentblock/4, DEC);Serial.println("-------------------------");
           Serial.print("key used:");
              Serial.print(KeyA_List[currentblock/4][0], HEX);
              Serial.print(KeyA_List[currentblock/4][1], HEX);
              Serial.print(KeyA_List[currentblock/4][2], HEX);
              Serial.print(KeyA_List[currentblock/4][3], HEX);
              Serial.print(KeyA_List[currentblock/4][4], HEX);
              Serial.println(KeyA_List[currentblock/4][5], HEX);
          if (currentblock == 0)
          {
              success = nfc.mifareclassic_AuthenticateBlock (uid, uidLength, currentblock, 1, KeyA_List[0]);
              buzy = true;
          }
          else
          {
              success = nfc.mifareclassic_AuthenticateBlock (uid, uidLength, currentblock, 1, KeyA_List[currentblock/4]);
          }
          if (success)
          {

          else
          {
            Serial.println("Authentication error");
            lcd.clear();
            lcd.print("key error");
          }
        }
        // If we're still not authenticated just skip the block
