diff --git a/DownloadDCJsonFiles/update.cpp b/DownloadDCJsonFiles/update.cpp
index 420b895..c42103f 100644
--- a/DownloadDCJsonFiles/update.cpp
+++ b/DownloadDCJsonFiles/update.cpp
@@ -138,10 +138,11 @@ Update::~Update() {
     unloadDCPlugin();
 }
 
-bool Update::doUpdate(QStringList const &filesToWorkOn) {
+bool Update::doUpdate(QStringList const &filesToWorkOn, bool usbStickDetected) {
 
     if (!m_hw) {
-        qCritical() << "ERROR!!! m_hw == nullptr";
+        qCritical() << "(" << __func__ << ":" << __LINE__ << "):"
+                    << "ERROR!!! m_hw == nullptr";
         return false;
     }
 
@@ -149,10 +150,12 @@ bool Update::doUpdate(QStringList const &filesToWorkOn) {
     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-SLAVE-PLUGIN NOT CONNECTED";
+            qCritical() << "(" << __func__ << ":" << __LINE__ << "):"
+                        << "ERROR!!! DC DATA NOT VALID -> CA-SLAVE-PLUGIN NOT CONNECTED";
             return false;
         }
-        qCritical() << "ERROR!!! DC DATA NOT VALID -> CA-SLAVE-PLUGIN NOT CONNECTED (" << tries << ")";
+        qCritical() << "(" << __func__ << ":" << __LINE__ << "):"
+                    << "ERROR!!! DC DATA NOT VALID -> CA-SLAVE-PLUGIN NOT CONNECTED (" << tries << ")";
         m_hw->dc_autoRequest(true);
         QThread::msleep(500);
     }
@@ -161,7 +164,8 @@ bool Update::doUpdate(QStringList const &filesToWorkOn) {
 
     QList<QString>::const_iterator it;
     for (it = filesToWorkOn.cbegin(); it != filesToWorkOn.cend(); ++it) {
-        QString const &fToWorkOn = QDir::cleanPath(m_customerRepository + QDir::separator() + it->trimmed());
+        QString const &fToWorkOn = usbStickDetected ? QDir::cleanPath(it->trimmed())
+            : QDir::cleanPath(m_customerRepository + QDir::separator() + it->trimmed());
         if (fToWorkOn.contains("DC2C_print", Qt::CaseInsensitive)
          && fToWorkOn.endsWith(".json", Qt::CaseInsensitive)) {
             res = true;
@@ -203,6 +207,25 @@ bool Update::doUpdate(QStringList const &filesToWorkOn) {
 }
 
 bool Update::checkJsonVersions(QStringList const& jsonFileNames) {
+    if (!m_hw) {
+        qCritical() << "(" << __func__ << ":" << __LINE__ << "):"
+                    << "ERROR!!! m_hw == nullptr";
+        return 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() << "(" << __func__ << ":" << __LINE__ << "):"
+                        << "ERROR!!! DC DATA NOT VALID -> CA-SLAVE-PLUGIN NOT CONNECTED";
+            return false;
+        }
+        qCritical() << "(" << __func__ << ":" << __LINE__ << "):"
+                    << "ERROR!!! DC DATA NOT VALID -> CA-SLAVE-PLUGIN NOT CONNECTED (" << tries << ")";
+        m_hw->dc_autoRequest(true);
+        QThread::msleep(500);
+    }
 
     for (QStringList::size_type i=0; i < jsonFileNames.size(); ++i) {
 
@@ -231,6 +254,7 @@ bool Update::checkJsonVersions(QStringList const& jsonFileNames) {
                 bool ok = false;
                 int n = captured.toInt(&ok);
                 if (ok) {
+                    // note: use 5 (instead of 4 -> index has been shifted)
                     jsonNr = n + 5;
                 }
             }
diff --git a/DownloadDCJsonFiles/update.h b/DownloadDCJsonFiles/update.h
index 9e2496b..daa3037 100644
--- a/DownloadDCJsonFiles/update.h
+++ b/DownloadDCJsonFiles/update.h
@@ -58,7 +58,7 @@ public:
 
     virtual ~Update() override;
 
-    bool doUpdate(QStringList const &jsonFilesToDownload);
+    bool doUpdate(QStringList const &jsonFilesToDownload, bool usbStickDetected = false);
 
     bool updatePrinterTemplate(int templateIdx, QString fname) const;
     bool updateConfig(QString jsFileToSendToDC);