diff --git a/src/SelectDialog.cpp b/src/SelectDialog.cpp
index 33321bd..867707c 100644
--- a/src/SelectDialog.cpp
+++ b/src/SelectDialog.cpp
@@ -30,6 +30,6 @@ QString SelectDialog::getSelectedValue() {
     return box->getSelectedValue();
 }
 
-void SelectDialog::setSelectedValue(QString & val) {
+void SelectDialog::setSelectedValue(const QString & val) {
     box->setSelectedValue(val);
 }
diff --git a/src/SelectDialog.h b/src/SelectDialog.h
index b964657..548db61 100644
--- a/src/SelectDialog.h
+++ b/src/SelectDialog.h
@@ -14,7 +14,7 @@ public:
     ~SelectDialog() override;
     void setAvailableDates(QStringList dates);
     QString getSelectedValue();
-    void setSelectedValue(QString& val);
+    void setSelectedValue(const QString& val);
 protected:
     bool updateReferenceData() override;
     SlidePickerBox* box = nullptr;
diff --git a/src/components/SlidePickerBox.cpp b/src/components/SlidePickerBox.cpp
index abc6000..dfbf22d 100644
--- a/src/components/SlidePickerBox.cpp
+++ b/src/components/SlidePickerBox.cpp
@@ -211,7 +211,7 @@ void SlidePickerBox::hideLabel(QLabel *label) {
     label->move(lp);
 }
 
-void SlidePickerBox::setSelectedValue(QString& val) {
+void SlidePickerBox::setSelectedValue(const QString& val) {
     qDebug()<<"set value:"<<val;
     for (int i = 0; i < lbls.count() ; ++i) {
         if(lbls[i]->text() == val) {
diff --git a/src/components/SlidePickerBox.h b/src/components/SlidePickerBox.h
index e1acd03..fe6e45c 100644
--- a/src/components/SlidePickerBox.h
+++ b/src/components/SlidePickerBox.h
@@ -17,7 +17,7 @@ public:
     {
         this->items.append(item);
     }
-    void setSelectedValue(QString& val);
+    void setSelectedValue(const QString& val);
 protected:
 
     bool isDragging;
diff --git a/src/json/cJSON.h b/src/json/cJSON.h
index 2353a66..522f3b4 100644
--- a/src/json/cJSON.h
+++ b/src/json/cJSON.h
@@ -40,36 +40,36 @@ extern "C"
 #define cJSON_IsReference 256
 
 /* The cJSON structure: */
-	typedef struct cJSON {
-		struct cJSON* next, * prev;	/* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
-		struct cJSON* child;		/* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
+typedef struct cJSON {
+	struct cJSON *next,*prev;	/* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
+	struct cJSON *child;		/* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
 
-		int type;					/* The type of the item, as above. */
+	int type;					/* The type of the item, as above. */
 
-		char* valuestring;			/* The item's string, if type==cJSON_String */
-		int valueint;				/* The item's number, if type==cJSON_Number */
-		double valuedouble;			/* The item's number, if type==cJSON_Number */
+	char *valuestring;			/* The item's string, if type==cJSON_String */
+	int valueint;				/* The item's number, if type==cJSON_Number */
+	double valuedouble;			/* The item's number, if type==cJSON_Number */
 
-		char* string;				/* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
-	} cJSON;
+	char *string;				/* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
+} cJSON;
 
-	typedef struct cJSON_Hooks {
-		void* (*malloc_fn)(size_t sz);
-		void (*free_fn)(void* ptr);
-	} cJSON_Hooks;
+typedef struct cJSON_Hooks {
+      void *(*malloc_fn)(size_t sz);
+      void (*free_fn)(void *ptr);
+} cJSON_Hooks;
 
-	/* Supply malloc, realloc and free functions to cJSON */
-	extern void cJSON_InitHooks(cJSON_Hooks* hooks);
+/* Supply malloc, realloc and free functions to cJSON */
+extern void cJSON_InitHooks(cJSON_Hooks* hooks);
 
 
-	/* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
-	extern cJSON* cJSON_Parse(const char* value);
-	/* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
-	extern char* cJSON_Print(cJSON* item);
-	/* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
-	extern char* cJSON_PrintUnformatted(cJSON* item);
-	/* Delete a cJSON entity and all subentities. */
-	extern void   cJSON_Delete(cJSON* c);
+/* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
+extern cJSON *cJSON_Parse(const char *value);
+/* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
+extern char  *cJSON_Print(cJSON *item);
+/* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
+extern char  *cJSON_PrintUnformatted(cJSON *item);
+/* Delete a cJSON entity and all subentities. */
+extern void   cJSON_Delete(cJSON *c);
 
 	/* Returns the number of items in an array (or object). */
 	extern int	  cJSON_GetArraySize(cJSON* array);
diff --git a/src/json/jsonobject.cpp b/src/json/jsonobject.cpp
index 784b277..604cf92 100644
--- a/src/json/jsonobject.cpp
+++ b/src/json/jsonobject.cpp
@@ -7,7 +7,7 @@
 #include <QTranslator>
 #include <QDebug>
 #include <QApplication>
-
+#include "json/cJSON.h"
 const char* strProductFileName = "./cfgs/usct-product.json";
 
 JsonObject::JsonObject()
@@ -24,7 +24,7 @@ void JsonObject::setJsonString(const char* catergory, const char* stringName, co
 	if (!loadcfg())
 		return;
 
-	cJSON* first = cJSON_FindItemInObject(json_root, catergory);
+	cJSON* first = cJSON_FindItemInObject((cJSON*)json_root, catergory);
 	if (!first) return;
 
 	cJSON* Item = cJSON_CreateString(stringValue);
@@ -38,7 +38,7 @@ char* JsonObject::getJsonString(const char* catergory, const char* stringName)
 	if (!loadcfg())
 		return "";
 
-	cJSON* first = cJSON_FindItemInObject(json_root, catergory);
+	cJSON* first = cJSON_FindItemInObject((cJSON*)json_root, catergory);
 	if (!first) return "";
 
 	cJSON* second = cJSON_FindItemInObject(first, stringName);
@@ -53,7 +53,7 @@ QStringList JsonObject::protocals()
 	if (!loadcfg())
 		return QStringList();
 
-	cJSON* first = cJSON_FindItemInObject(json_root, "protocol");
+	cJSON* first = cJSON_FindItemInObject((cJSON*)json_root, "protocol");
 	if (!first) return QStringList();
 
 	cJSON* second = cJSON_FindItemInObject(first, "lists");
@@ -90,7 +90,7 @@ QStringList JsonObject::worklistFilters()
 	if (!loadcfg())
 		return QStringList();
 
-	cJSON* first = cJSON_FindItemInObject(json_root, "worklistfilter");
+	cJSON* first = cJSON_FindItemInObject((cJSON*)json_root, "worklistfilter");
 	if (!first) return QStringList();
 
 	cJSON* second = cJSON_FindItemInObject(first, "lists");
@@ -107,7 +107,7 @@ QStringList JsonObject::language()
 	if (!loadcfg())
 		return QStringList();
 
-	cJSON* first = cJSON_FindItemInObject(json_root, "general");
+	cJSON* first = cJSON_FindItemInObject((cJSON*)json_root, "general");
 	if (!first) return QStringList();
 
 	cJSON* second = cJSON_FindItemInObject(first, "language");
@@ -220,7 +220,7 @@ bool JsonObject::savecfg()
 		return -1;
 	}
 
-	char* strJsonData = cJSON_Print(json_root);
+	char* strJsonData = cJSON_Print((cJSON*)json_root);
 	std::stringstream ss;
 	ss << strJsonData;
 	outFile << ss.rdbuf();
diff --git a/src/json/jsonobject.h b/src/json/jsonobject.h
index 450c90b..c6147ae 100644
--- a/src/json/jsonobject.h
+++ b/src/json/jsonobject.h
@@ -2,7 +2,6 @@
 #define JSONOBJECT_H
 
 //#include <QObject>
-#include "json/cJSON.h"
 class QString;
 class QStringList;
 class QTranslator;
@@ -59,7 +58,7 @@ private:
 
 	JsonObject();
 	~JsonObject();
-	cJSON* json_root = nullptr;
+	void* json_root = nullptr;
 	bool m_bLoaded = false;
 
 	int counter;
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 78729a0..328b7bc 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -236,6 +236,7 @@ MainWindow::MainWindow(QWidget* parent) :
         msgDialog = nullptr;
         AppGlobalValues::setInProcessing(false);
     });
+    DeviceManager::Default()->initDevice();
 	centerWidgetHide();
 }