diff --git a/update.cpp b/update.cpp
index 190534f..351f49c 100644
--- a/update.cpp
+++ b/update.cpp
@@ -123,26 +123,51 @@ Update::Update(Worker *worker,
     , m_dryRun(dryRun)
     , m_sys_areDCdataValid(false) {
 
-    int tries = 20;
-    while ((m_sys_areDCdataValid = m_hw->sys_areDCdataValid()) == false) {
-        // must deliver 'true', only then are all data from hwapi valid
-        if (--tries < 0) {
-            qCritical() << "ERROR!!! DC DATA NOT VALID -> CA-MASTER-PLUGIN NOT CONNECTED";
-            break;
+    if (!m_hw) {
+        qCritical() << "(" << __func__ << ":" << __LINE__ << ") m_hw == nullptr -> ca-slave plugin loaded ???";
+    } else {
+        int tries = 20;
+        while ((m_sys_areDCdataValid = m_hw->sys_areDCdataValid()) == false) {
+            // must deliver 'true', only then are all data from hwapi valid
+            if (--tries < 0) {
+                qCritical() << "ERROR!!! DC DATA NOT VALID -> CA-MASTER-PLUGIN NOT CONNECTED";
+                break;
+            }
+            m_hw->dc_autoRequest(true);
+            QThread::msleep(500);
         }
-        m_hw->dc_autoRequest(true);
-        QThread::msleep(500);
+
+        qCritical() << "(" << __func__ << ":" << __LINE__ << ") m_sys_areDCDataValid ..."
+                    << m_sys_areDCdataValid;
+
+        QObject const *obj = m_hw->getAPI();
+        Q_ASSERT(obj != nullptr);
+
+        QDebug critical = qCritical();
+        critical << "connect() to onReportDCDownloadStatus() ...";
+        if (!connect(obj,
+            SIGNAL(hwapi_reportDCDownloadStatus(QString const&)), this,
+            SLOT(onReportDCDownloadStatus(QString const &)))) {
+            critical << "FAILED";
+        }
+        critical << "DONE";
+        critical = qCritical();
+        critical << "connect() to onReportDCDownloadSuccess() ...";
+        if (!connect(obj,
+            SIGNAL(hwapi_reportDCDownloadSuccess(QString const&)), this,
+            SLOT(onReportDCDownloadSuccess(QString const &)))) {
+            critical << "FAILED";
+        }
+        critical << "DONE";
+        critical = qCritical();
+        critical << "connect() to onReportDCDownloadFailure() ...";
+        if (!connect(obj,
+            SIGNAL(hwapi_reportDCDownloadFailure(QString const &)), this,
+            SLOT(onReportDCDownloadFailure(QString const &)))) {
+            critical << "FAILED";
+        }
+        critical << "DONE";
     }
-
-    qCritical() << __PRETTY_FUNCTION__ << "m_sys_areDCDataValid ..." << m_sys_areDCdataValid;
-
-    //qInfo() << "UPDATE: m_serialInterface    ..." << m_serialInterface;
-    //qInfo() << "UPDATE: m_baudrate           ..." << m_baudrate;
-    //qInfo() << "UPDATE: m_customerRepository ..." << m_customerRepository;
-    //qInfo() << "UPDATE: m_customerNr ..........." << m_customerNrStr;
-    //qInfo() << "UPDATE: m_branchName ..........." << m_branchName;
-    //qInfo() << "UPDATE: m_pluginName ..........." << m_pluginName;
-    //qInfo() << "UPDATE: m_workingDirectory ....." << m_workingDir;
 }
 
 Update::~Update() {