diff --git a/DownloadDCFirmware/main.cpp b/DownloadDCFirmware/main.cpp
index ad64256..0c1267a 100644
--- a/DownloadDCFirmware/main.cpp
+++ b/DownloadDCFirmware/main.cpp
@@ -189,7 +189,7 @@ int main(int argc, char **argv) {
     }
 
     Update u(fi.absoluteFilePath(), libca, debug, noaction);
-    // u.run();
+    u.run();
 
     qInfo() << "<DC-UPDATE-FINISH>";
 
diff --git a/DownloadDCFirmware/update.cpp b/DownloadDCFirmware/update.cpp
index b57bbfe..8118617 100644
--- a/DownloadDCFirmware/update.cpp
+++ b/DownloadDCFirmware/update.cpp
@@ -400,19 +400,19 @@ int Update::run() {
         // TODO
         resetDeviceController();
         if (startBootloader()) {
-#if 0
+
             int currentBlock = 0;
             DownloadResult res = DownloadResult::OK;
             qInfo() << nextTimePoint().toUtf8().constData() << "64-byte block" << currentBlock;
 
-            while (res != DownloadResult::ERROR && currentBlock < m_totalBlocks) {
+            while (res != DownloadResult::ERROR && currentBlock <= m_totalBlocks) {
                 if ((res = sendNextAddress(currentBlock)) != DownloadResult::ERROR) {
                     if ((res = sendNextDataBlock(ba, currentBlock)) != DownloadResult::ERROR) {
                         currentBlock += 1;
                     } else break;
                 }
             }
-#endif
+
 #if 0
             qCritical() << "DownloadThread::run(): last 64-byte block %04d" << currentBlock;
 
diff --git a/UpdatePTUDevCtrl/worker.cpp b/UpdatePTUDevCtrl/worker.cpp
index afe860b..76fd259 100644
--- a/UpdatePTUDevCtrl/worker.cpp
+++ b/UpdatePTUDevCtrl/worker.cpp
@@ -264,6 +264,14 @@ Worker::Worker(int customerNr,
                     // QString("/opt/app/tools/atbupdate/ATBUpdateOpkg")
                     , this, ++next, false));
 
+    // 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")
+                    , this, ++next));
+
+
     // *** send json files down to device controller ***
     m_workList.push_back(
                 std::make_unique<UpdateJsonCommand>(
@@ -277,12 +285,6 @@ Worker::Worker(int customerNr,
                     QString("echo ATBUpdateSync")
                     , this, ++next));
 
-    // 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")
-                    , this, ++next));
 
     // show/send software-status
     m_workList.push_back(