diff --git a/main.cpp b/main.cpp
index 471c45b..8b48f51 100644
--- a/main.cpp
+++ b/main.cpp
@@ -39,93 +39,6 @@
 #define SERIAL_PORT "ttyUSB0"
 #endif
 
-#if 0
-static QGraphicsProxyWidget *createItem(const QSizeF &minimum = QSizeF(100.0, 100.0),
-                                        const QSizeF &preferred = QSize(150.0, 100.0),
-                                        const QSizeF &maximum = QSizeF(200.0, 100.0),
-                                        const QString &name = "0")
-{
-    QGraphicsProxyWidget *w = new QGraphicsProxyWidget;
-    w->setWidget(new QPushButton(name));
-    w->setData(0, name);
-    w->setMinimumSize(minimum);
-    w->setPreferredSize(preferred);
-    w->setMaximumSize(maximum);
-
-    w->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
-    return w;
-}
-
-int main(int argc, char **argv)
-{
-    QApplication app(argc, argv);
-
-    QGraphicsScene scene;
-    scene.setSceneRect(0, 0, 800, 480);
-
-    QSizeF minSize(30, 100);
-    QSizeF prefSize(210, 100);
-    QSizeF maxSize(300, 100);
-
-    QGraphicsProxyWidget *a = createItem(minSize, prefSize, maxSize, "A");
-    QGraphicsProxyWidget *b = createItem(minSize, prefSize, maxSize, "B");
-    QGraphicsProxyWidget *c = createItem(minSize, prefSize, maxSize, "C");
-    QGraphicsProxyWidget *d = createItem(minSize, prefSize, maxSize, "D");
-    QGraphicsProxyWidget *e = createItem(minSize, prefSize, maxSize, "E");
-    QGraphicsProxyWidget *f = createItem(QSizeF(30, 50), QSizeF(150, 50), maxSize, "F (overflow)");
-    QGraphicsProxyWidget *g = createItem(QSizeF(30, 50), QSizeF(30, 100), maxSize, "G (overflow)");
-
-    QGraphicsAnchorLayout *l = new QGraphicsAnchorLayout;
-    l->setSpacing(0);
-
-    QGraphicsWidget *w = new QGraphicsWidget(0, Qt::Window);
-    w->setPos(20, 20);
-    w->setLayout(l);
-
-    // vertical
-    l->addAnchor(a, Qt::AnchorTop, l, Qt::AnchorTop);
-    l->addAnchor(b, Qt::AnchorTop, l, Qt::AnchorTop);
-
-    l->addAnchor(c, Qt::AnchorTop, a, Qt::AnchorBottom);
-    l->addAnchor(c, Qt::AnchorTop, b, Qt::AnchorBottom);
-    l->addAnchor(c, Qt::AnchorBottom, d, Qt::AnchorTop);
-    l->addAnchor(c, Qt::AnchorBottom, e, Qt::AnchorTop);
-
-    l->addAnchor(d, Qt::AnchorBottom, l, Qt::AnchorBottom);
-    l->addAnchor(e, Qt::AnchorBottom, l, Qt::AnchorBottom);
-
-    l->addAnchor(c, Qt::AnchorTop, f, Qt::AnchorTop);
-    l->addAnchor(c, Qt::AnchorVerticalCenter, f, Qt::AnchorBottom);
-    l->addAnchor(f, Qt::AnchorBottom, g, Qt::AnchorTop);
-    l->addAnchor(c, Qt::AnchorBottom, g, Qt::AnchorBottom);
-
-    // horizontal
-    l->addAnchor(l, Qt::AnchorLeft, a, Qt::AnchorLeft);
-    l->addAnchor(l, Qt::AnchorLeft, d, Qt::AnchorLeft);
-    l->addAnchor(a, Qt::AnchorRight, b, Qt::AnchorLeft);
-
-    l->addAnchor(a, Qt::AnchorRight, c, Qt::AnchorLeft);
-    l->addAnchor(c, Qt::AnchorRight, e, Qt::AnchorLeft);
-
-    l->addAnchor(b, Qt::AnchorRight, l, Qt::AnchorRight);
-    l->addAnchor(e, Qt::AnchorRight, l, Qt::AnchorRight);
-    l->addAnchor(d, Qt::AnchorRight, e, Qt::AnchorLeft);
-
-    l->addAnchor(l, Qt::AnchorLeft, f, Qt::AnchorLeft);
-    l->addAnchor(l, Qt::AnchorLeft, g, Qt::AnchorLeft);
-    l->addAnchor(f, Qt::AnchorRight, g, Qt::AnchorRight);
-
-
-    scene.addItem(w);
-    scene.setBackgroundBrush(Qt::darkGreen);
-    QGraphicsView view(&scene);
-
-    view.show();
-
-    return app.exec();
-}
-#endif
-
 // argv[1]: file to send to dc
 int main(int argc, char *argv[]) {
     QByteArray const value = qgetenv("LC_ALL");
@@ -140,22 +53,6 @@ int main(int argc, char *argv[]) {
     QApplication::setApplicationName("ATBUpdateTool");
     QApplication::setApplicationVersion(APP_VERSION);
 
-#if 0
-    // vorbereitend
-    QGraphicsScene scene;
-    scene.setSceneRect(0, 0, 800, 480);
-
-    QGraphicsAnchorLayout *l = new QGraphicsAnchorLayout;
-    l->setSpacing(0);
-
-    QGraphicsWidget *w = new QGraphicsWidget(0, Qt::Window);
-    w->setPos(20, 20);
-    w->setLayout(l);
-
-    QGraphicsView view(&scene);
-    // view.show();
-#endif
-
     if (!messageHandlerInstalled()) { // change internal qt-QDebug-handling
         atbInstallMessageHandler(atbDebugOutput);
         setDebugLevel(LOG_NOTICE);
@@ -230,6 +127,7 @@ int main(int argc, char *argv[]) {
     QThread::currentThread()->setObjectName("main thread");
     qInfo() << "Main thread" << QThread::currentThreadId();
 
+
     Worker worker(hw,
                   customerNr,
                   machineNr,