diff --git a/src/datIf.cpp b/src/datIf.cpp
index 2e87c3d..9075f82 100644
--- a/src/datIf.cpp
+++ b/src/datIf.cpp
@@ -888,9 +888,6 @@ char T_datif::loadRecDataFromFrame()
         // retval: data valid, only one time true, true if CommandState OK and readState OK
     gpi_storeResultOfLastRequest(ret);
 
-
-    qCritical() << "loadRecDataFromFrame() readSource = " << readSource;
-
     if (ret==false)
     {
         qCritical() << "datif: rec data not valid";
@@ -900,7 +897,7 @@ char T_datif::loadRecDataFromFrame()
     gpi_storeRecPayLoad(RdDleng, receivedData); //  save for host (user of hwapi)
 
 
-    qCritical() << "loadRecDataFromFrame() readSource = " << readSource;
+    //qCritical() << "loadRecDataFromFrame() readSource = " << readSource;
     //qDebug() << "\n datif: got valid data, rdsrc:" << readSource << "  rdadd:" << readAddress
      //        << "  rdlen:" << RdDleng;
 //    qDebug("datif_recData: %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d ",
@@ -1218,11 +1215,14 @@ char T_datif::loadRecDataFromFrame()
         break;
 
     case CMD2DC_EMP_GET_ALL:        //23
-        qCritical() << "got emp parameters "<< receivedData[1];
+        //qCritical() << "got emp parameters "<< receivedData[1];
         gpi_storeEmpSettings(64, receivedData);
         break;
 
     case CMD2DC_EMP_GOTCOIN:        //108
+
+        //qCritical() << "loadRecDataFromFrame() readSource = " << readSource;
+
         // DB0: 1=coin 0xFF=error 0=got nothing
         // DB1: last coin signal (value / scale)
         // DB2,3: last coin value
@@ -1387,6 +1387,9 @@ char T_datif::loadRecDataFromFrame()
         break;
 
     case 112:       // get inserted amount in cent in sum
+
+        //qCritical() << "loadRecDataFromFrame() readSource = " << readSource;
+
         // byte 0..3: amount just paid   4,5:last coin type  6,7: last coin value
         newInsertedAmount=uchar2ulong(receivedData[3],receivedData[2],receivedData[1],receivedData[0]);
         uitmp=uchar2uint(receivedData[5],receivedData[4]);
diff --git a/src/prot.cpp b/src/prot.cpp
index a63c092..8c13052 100644
--- a/src/prot.cpp
+++ b/src/prot.cpp
@@ -433,8 +433,8 @@ uint8_t recBuffer[FRAME_MAXLEN];
 
     // read from "VCP":
     mySerialPort->readFromSerial(Indata, recLength);
-    qCritical()<<"prot: got data "  << recLength;
-    qCritical()<<"        Indata: " << Indata;
+    //qCritical()<<"prot: got data "  << recLength;
+    //qCritical()<<"        Indata: " << Indata;
     if (recLength>FRAME_MAXLEN)
         recLength=FRAME_MAXLEN;
     for (int nn=0; nn<recLength; nn++)
@@ -445,7 +445,7 @@ uint8_t recBuffer[FRAME_MAXLEN];
     //uint8_t result=FramecheckInData(recBuffer, recLength);  // check input data (response from slave)
     uint8_t result=FastCheckInData(recBuffer, recLength);  // check input data (response from slave)
 
-    qCritical()<<"    FastCheckInData() result = " << result;
+    //qCritical()<<"    FastCheckInData() result = " << result;
 
     if (result>0)
     {