diff --git a/libnfc/buses/uart_posix.c b/libnfc/buses/uart_posix.c
index 28e47ef..15fc743 100644
--- a/libnfc/buses/uart_posix.c
+++ b/libnfc/buses/uart_posix.c
@@ -221,6 +221,8 @@ uart_receive (serial_port sp, byte_t * pbtRx, size_t * pszRx)
     .tv_usec = uiTimeoutStatic + (uiTimeoutPerByte * iExpectedByteCount),
   };
   struct timeval tv = tvTimeout;
+  DBG("Expected bytes count: %d", iExpectedByteCount);
+  //  if(iExpectedByteCount>250) { abort(); };
 
   // Reset the output count  
   *pszRx = 0;
@@ -239,7 +241,7 @@ uart_receive (serial_port sp, byte_t * pbtRx, size_t * pszRx)
     if (res == 0) {
       if (*pszRx == 0) {
         // Error, we received no data
-        // DBG ("RX time-out (%lu µs), buffer empty.", tvTimeout.tv_usec);
+        DBG ("RX time-out (%lu µs), buffer empty.", tvTimeout.tv_usec);
         return DETIMEOUT;
       } else {
         // We received some data, but nothing more is available
@@ -261,10 +263,12 @@ uart_receive (serial_port sp, byte_t * pbtRx, size_t * pszRx)
     }
 
     *pszRx += res;
-    tv.tv_usec = uiTimeoutPerByte * MIN( iExpectedByteCount, 16 ); // Reload timeout with a low value to prevent from waiting too long on slow devices (16x is enought to took at least 1 byte)
-    // DBG("Timeout reloaded at: %d µs", tv.tv_usec);
+    tv.tv_usec = uiTimeoutPerByte * MIN( iExpectedByteCount, 16 );
+    DBG("Timeout reloaded at: %d µs", tv.tv_usec);
   } while (byteCount && (iExpectedByteCount > 0));
 
+  DBG("Remaining expected bytes count: %d", iExpectedByteCount);
+
   return 0;
 }
 
diff --git a/manual-test-results.txt b/manual-test-results.txt
index 0ea0fe7..6b9f1f3 100644
--- a/manual-test-results.txt
+++ b/manual-test-results.txt
@@ -4,6 +4,7 @@
 r736, nfc-anticol, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, DESfire, OK
 r736, nfc-anticol, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, MFC, OK
 r736, nfc-anticol, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, UL, OK
+r846, nfc-anticol, ARYGON 00V5.1 (/dev/ttyUSB0) - PN532 v1.4 (APDB2UA33), MFC, OK
 r736, nfc-anticol, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, DESfire, OK
 r736, nfc-anticol, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, MFC, OK
 r736, nfc-anticol, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, UL, OK
@@ -30,6 +31,7 @@ r736, nfc-list, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, topa
 r736, nfc-list, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, typeB Calypso, OK
 r736, nfc-list, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, ULC, OK
 r736, nfc-list, ACS ACR 38U-CCID 00 00 / ACR122U102 - PN532 v1.4, DESFire, OK
+r846, nfc-list, ARYGON 00V5.1 (/dev/ttyUSB0) - PN532 v1.4 (APDB2UA33), MFC, OK
 r736, nfc-list, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, 2 DESfire, OK
 r736, nfc-list, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, 2 UL, OK
 r736, nfc-list, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, DESFire, OK
@@ -39,6 +41,7 @@ r736, nfc-list, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, topaz, OK
 r736, nfc-list, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, typeB Calypso, OK
 r736, nfc-list, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, ULC, OK
 r736, nfc-mfclassic r a foo, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, MFC, OK
+r846, nfc-mfclassic r a foo, ARYGON 00V5.1 (/dev/ttyUSB0) - PN532 v1.4 (APDB2UA33), MFC, OK
 r736, nfc-mfclassic r a foo, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, MFC, OK
 r736, nfc-mfultralight r foo, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, UL, OK
 r736, nfc-mfultralight r foo, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, UL, OK
@@ -49,8 +52,12 @@ r739, nfc-poll, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, MFC,
 r739, nfc-poll, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, topaz, OK
 r739, nfc-poll, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, typeB Calypso, OK
 r739, nfc-poll, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, ULC, OK
+r846, nfc-poll, ARYGON 00V5.1 (/dev/ttyUSB0) - PN532 v1.4 (APDB2UA33), MFC, FAIL
+r849, nfc-poll, ARYGON 00V5.1 (/dev/ttyUSB0) - PN532 v1.4 (APDB2UA33), MFC, OK
 r736, pn53x-diagnose, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, N/A, OK
 r736, pn53x-diagnose, ACS ACR 38U-CCID 00 00 / ACR122U102 - PN532 v1.4, N/A, OK
+r846, pn53x-diagnose, ARYGON 00V5.1 (/dev/ttyUSB0) - PN532 v1.4 (APDB2UA33), N/A, FAIL
+r849, pn53x-diagnose, ARYGON 00V5.1 (/dev/ttyUSB0) - PN532 v1.4 (APDB2UA33), N/A, OK
 r736, pn53x-diagnose, SCM Micro / SCL3711-NFC&RW - PN533 v2.7, N/A, OK
 r744, pn53x-sam (mode 1), Philips / PN531 - PN531 v4.2 + SAM, CardMan 5321, OK
 r736, pn53x-tamashell < pn53x-tamashell-scripts/UltraLightRead.cmd, ACS ACR122U PICC Interface 00 00 / ACR122U102 - PN532 v1.4, ultralight, OK