diff --git a/src/protocol.cpp b/src/protocol.cpp
index 36d70271..5917ed41 100755
--- a/src/protocol.cpp
+++ b/src/protocol.cpp
@@ -176,6 +176,12 @@ bool CProtocol::ParseMessageFrame ( const CVector<uint8_t>& vecIn,
 		return false; // return error code
 	}
 
+
+// TEST
+qDebug ( "min length ok" );
+
+
+
 	// decode header -----
 	iCurPos = 0; // start from beginning
 
@@ -194,6 +200,11 @@ bool CProtocol::ParseMessageFrame ( const CVector<uint8_t>& vecIn,
 		return false; // return error code
 	}
 
+// TEST
+qDebug ( "overall length ok" );
+
+
+
 	// now check CRC -----
 	CCRC CRCObj;
 	const int iLenCRCCalc = MESS_HEADER_LENGTH_BYTE + iLenBy;
@@ -210,6 +221,11 @@ bool CProtocol::ParseMessageFrame ( const CVector<uint8_t>& vecIn,
 		return false; // return error code
 	}
 
+
+// TEST
+qDebug ( "CRC ok" );
+
+
 	// decode data -----
 	iCurPos = MESS_HEADER_LENGTH_BYTE; // start from beginning of data
 	for ( i = 0; i < iLenBy; i++ )