diff --git a/DownloadDCFirmware/main.cpp b/DownloadDCFirmware/main.cpp
index b9e957f..0c1267a 100644
--- a/DownloadDCFirmware/main.cpp
+++ b/DownloadDCFirmware/main.cpp
@@ -65,7 +65,6 @@ int main(int argc, char **argv) {
         setDebugLevel(LOG_NOTICE);
     }
 
-
     //return 0;
 
 /*
@@ -172,7 +171,7 @@ int main(int argc, char **argv) {
             qInfo() << "using customer repository" << psaRepoDir;
         }
 
-        std::unique_ptr<QString> c = internal::dcCandidateToInstall();
+        std::unique_ptr<QString> c = internal::dcCandidateToInstall("/etc/dc/");
         if (c) {
             fi.setFile(*c);
             if (fi.exists() == false) {
diff --git a/DownloadDCFirmware/update.cpp b/DownloadDCFirmware/update.cpp
index 7a0f4dc..52ac204 100644
--- a/DownloadDCFirmware/update.cpp
+++ b/DownloadDCFirmware/update.cpp
@@ -392,6 +392,10 @@ int Update::run() {
 
     qInfo() << "DC auto request OFF";
 
+    // dennis einzelne linie
+    qCritical() << "start dc-update for" << m_dcFileName << "at" << m_start.toString(Qt::ISODate);
+
+
     QByteArray ba = loadBinaryDCFile(m_dcFileName);
     if (ba.size() > 0) {
         m_totalBlocks = (((ba.size())%64)==0) ? (ba.size()/64) : (ba.size()/64)+1;
diff --git a/UpdatePTUDevCtrl/worker.cpp b/UpdatePTUDevCtrl/worker.cpp
index 3cab431..afe860b 100644
--- a/UpdatePTUDevCtrl/worker.cpp
+++ b/UpdatePTUDevCtrl/worker.cpp
@@ -280,8 +280,8 @@ Worker::Worker(int customerNr,
     // send device-controller firmware down to device-controller-hardware
     m_workList.push_back(
                 std::make_unique<UpdateDCCommand>(
-                    QString("echo ATBUpdateDC")
-                    // QString("/opt/app/tools/atbupdate/ATBUpdateDC")
+                    // QString("echo ATBUpdateDC")
+                    QString("/opt/app/tools/atbupdate/ATBUpdateDC")
                     , this, ++next));
 
     // show/send software-status
diff --git a/common/src/utils_internal.cpp b/common/src/utils_internal.cpp
index e21d0b1..2615c87 100644
--- a/common/src/utils_internal.cpp
+++ b/common/src/utils_internal.cpp
@@ -116,6 +116,8 @@ std::unique_ptr<QSettings> readSettings(QString const &optionalDirName) {
 std::unique_ptr<QString> dcCandidateToInstall(QString const &dcDirectory) {
     std::unique_ptr<QString> dcCandidate{nullptr};
 
+    qCritical() << __func__ << __LINE__ << dcDirectory;
+
     QDir dcDir{dcDirectory.isEmpty() ? customerRepoDcDir() : dcDirectory};
     if (dcDir.exists()) {