Index: sources/canbus/messagebuilder.cpp
===================================================================
diff -u -r1ec7b44e6d1d66460d2da943ff65f3c0c0755d8f -r44a85c96ab55e424866ec4cca0270aa218355f82
--- sources/canbus/messagebuilder.cpp	(.../messagebuilder.cpp)	(revision 1ec7b44e6d1d66460d2da943ff65f3c0c0755d8f)
+++ sources/canbus/messagebuilder.cpp	(.../messagebuilder.cpp)	(revision 44a85c96ab55e424866ec4cca0270aa218355f82)
@@ -1,15 +1,16 @@
 /*!
- *
+ * 
  * Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
- * copyright
- *          THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM,
- *          IN PART OR IN WHOLE,
- *          WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
- *
- * file    messagebuilder.cpp
- * date    12/6/2019
- * author  Behrouz NematiPour
- *
+ * \copyright
+ * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
+ * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
+ * 
+ * \file messagebuilder.cpp
+ * \author (last) Behrouz NematiPour
+ * \date (last) 07-May-2020
+ * \author (original) Behrouz NematiPour
+ * \date (original) 09-Dec-2019
+ * 
  */
 #include "messagebuilder.h"
 
@@ -225,9 +226,13 @@
     quint8 mExpected = 0;
     quint8 mBeenRead = 0;
     if ( ! checkCRC(crcData, mExpected, mBeenRead ) ) {  // CRC is always next byte after Data
-        LOG_ERROR(tr("CRC error, expected %1 but got %2")
-                    .arg(Format::toHexString(mExpected, true, eLenCRCDigits))
-                    .arg(Format::toHexString(mBeenRead, true, eLenCRCDigits)));
+        static quint64 erCRC = 0;
+        LOG_ERROR(tr("%1 - CRC error, expected %2 but got %3 : %4")
+                  .arg(++erCRC)
+                  .arg(Format::toHexString(mExpected, true, eLenCRCDigits))
+                  .arg(Format::toHexString(mBeenRead, true, eLenCRCDigits))
+                  .arg(Format::toHexString(vMessage.data))
+                  );
         return false;
     }
     return true;
@@ -421,6 +426,7 @@
         return;
     }
     QByteArray view;
+    // coco begin validated: printPayload and specially vUseColor is for debugging purposes and has been validated manually.
     if (vUseColor) {
         QList<QByteArray> byteList;
         byteList = vPayload.toHex('.').split('.');
@@ -445,6 +451,7 @@
         view = Format::toHexString(vCan_Id, false, eLenChannelDigits).toLatin1() + "   " + vPayload.toHex('.');
         fprintf(stderr, "%s\n", view.constData());
     }
+    // coco end
 }
 
 /*!