Index: main.cpp
===================================================================
diff -u -r80b5e8f1ebb90c03c37d90d90cd2da3bd95d6803 -r8d5fe7d63e3d86e9d89d5f824347d34479e4e9ec
--- main.cpp	(.../main.cpp)	(revision 80b5e8f1ebb90c03c37d90d90cd2da3bd95d6803)
+++ main.cpp	(.../main.cpp)	(revision 8d5fe7d63e3d86e9d89d5f824347d34479e4e9ec)
@@ -102,6 +102,7 @@
 QString     gActiveCANBus               = "can0";
 
 bool        gEnableManufacturing        = false ;
+bool        gEnableUpdating             = false ;
 bool        gUseRootHome                = false ;
 
 QString     gParserErrorText            = "";
@@ -271,6 +272,12 @@
         QCoreApplication::translate("main", "In case the application is not in Manufacturing Setup but needs to use root home folder for configurations."));
     parser.addOption(optionUseRootHome);
 
+    // --- -U : Update mode
+    QCommandLineOption optionEnableUpdating(
+        QStringList() << "U" << "enable-Update-mode",
+        QCoreApplication::translate("main", "Enables the update mode to update only necessary files during the update and keep the rest."));
+    parser.addOption(optionEnableUpdating);
+
     // --- parse command lines
     if ( ! parser.parse(qApp->arguments()) ) {
         gParserErrorText = parser.errorText();
@@ -294,6 +301,7 @@
     gEnableDryDemo              = parser.isSet(optionEnableDryDemo              );
 
     gEnableManufacturing        = parser.isSet(optionEnableManufacturing        );
+    gEnableUpdating             = parser.isSet(optionEnableUpdating             );
     gUseRootHome                = parser.isSet(optionUseRootHome                );
 
     if (                          parser.isSet(optionActiveCANBus               ) ) {
@@ -376,16 +384,16 @@
  * \brief   lockdown
  * \details runs the lockdown shellscript as a detached process
  *          and ment to be executed just before the application quits
- *          and only when application running in manufacturing mode.
+ *          and only when application running in manufacturing or update mode.
  *          Must not stop application shutdown in any way.
  *          If any error happens it only logs.
  */
 void lockdown() {
     // there are two setup scenarios:
-    // only during setup mode which is -E (manufacturing setup) application is running under the root user permissions
+    // only during setup mode which is -E (manufacturing setup) or -U -E (update setup) application is running under the root user permissions
     // and all the files are copied to the /home/root/ te later be copied to secured locations
     // and that will be done by lockdown.sh script running within application after the user is done with the setup and QUIT s the application.
-    if ( gEnableManufacturing ) {
+    if ( gEnableManufacturing || gEnableUpdating ) {
         QString scriptName = Storage::Device_Lockdown;
         quint16 errorCode;
         QString errorText;