diff --git a/DSView/pv/dialogs/deviceoptions.cpp b/DSView/pv/dialogs/deviceoptions.cpp
index 57c56f4a..5311577e 100755
--- a/DSView/pv/dialogs/deviceoptions.cpp
+++ b/DSView/pv/dialogs/deviceoptions.cpp
@@ -46,15 +46,17 @@ DeviceOptions::DeviceOptions(QWidget *parent, DevInst *dev_inst) :
      _props_box = NULL;
      _config_button = NULL;
      _cali_button = NULL;
+     
+     QWidget *dlg = this;
 
      setTitle(tr("Device Options"));
 
     _props_box = new QGroupBox(tr("Mode"), this);
     _props_box->setLayout(get_property_form(_props_box));
-    //_layout.addWidget(_props_box);
+    _layout.addWidget(_props_box);
+
+    _dynamic_box = new QGroupBox(dynamic_widget(_dynamic_layout),this);
 
-    _dynamic_box = new QGroupBox(dynamic_widget(_dynamic_layout),
-                                          this);
     _dynamic_box->setLayout(&_dynamic_layout);
     _layout.addWidget(_dynamic_box);
     _dynamic_box->setVisible(_dynamic_box->title() != "");
@@ -64,8 +66,7 @@ DeviceOptions::DeviceOptions(QWidget *parent, DevInst *dev_inst) :
 
     layout()->addLayout(&_layout);
  
-    connect(&_button_box, SIGNAL(accepted()), this, SLOT(accept()));
-    //connect(&_button_box, SIGNAL(rejected()), this, SLOT(reject()));
+    connect(&_button_box, SIGNAL(accepted()), this, SLOT(accept())); 
     connect(_dev_inst, SIGNAL(device_updated()), this, SLOT(reject()));
 
     GVariant* gvar = _dev_inst->get_config(NULL, NULL, SR_CONF_OPERATION_MODE);
@@ -73,6 +74,7 @@ DeviceOptions::DeviceOptions(QWidget *parent, DevInst *dev_inst) :
         _mode = QString::fromUtf8(g_variant_get_string(gvar, NULL));
         g_variant_unref(gvar);
     }
+
     connect(&_mode_check, SIGNAL(timeout()), this, SLOT(mode_check()));
     _mode_check.setInterval(100);
     _mode_check.start();
@@ -448,7 +450,6 @@ void DeviceOptions::channel_enable()
                     w->setEnabled(sc->isChecked());
                 }
             }
-            //dynamic_widget(_dynamic_layout);
         }
     }
 }
@@ -457,6 +458,7 @@ QString DeviceOptions::dynamic_widget(QGridLayout& inner_layout) {
     if (_dev_inst->dev_inst()->mode == LOGIC) {
         logic_probes(inner_layout);
         return tr("Channels");
+
     } else if (_dev_inst->dev_inst()->mode == DSO) {
         GVariant* gvar = _dev_inst->get_config(NULL, NULL, SR_CONF_HAVE_ZERO);
         if (gvar != NULL) {
diff --git a/DSView/pv/mainwindow.cpp b/DSView/pv/mainwindow.cpp
index 18ac770f..61e446ad 100644
--- a/DSView/pv/mainwindow.cpp
+++ b/DSView/pv/mainwindow.cpp
@@ -93,6 +93,8 @@
 #include "appcontrol.h"
 #include "dsvdef.h"
 #include "appcontrol.h"
+
+#define BASE_SESSION_VERSION 2
   
 
 namespace pv {
@@ -963,9 +965,20 @@ bool MainWindow::load_session_json(QJsonDocument json, bool file_dev, bool bDeco
     QJsonObject sessionObj = json.object();
 
     // check session file version
-    if (!sessionObj.contains("Version") ||
-        sessionObj["Version"].toInt() != Session_Version)
+    if (!sessionObj.contains("Version")){
+        qDebug()<<"session file version is not exists!";
         return false;
+    }
+
+    if (sessionObj["Version"].toInt() < BASE_SESSION_VERSION){
+        qDebug()<<"session file version is error!"<<sessionObj["Version"].toInt();
+        return false;
+    }
+
+    // old version(<= 1.1.2), restore the language
+    if (sessionObj["Version"].toInt() == BASE_SESSION_VERSION){ 
+        switchLanguage(sessionObj["Language"].toInt());
+    }
 
     SigSession *_session = _control->GetSession();
 
@@ -1150,7 +1163,7 @@ bool MainWindow::gen_session_json(QJsonObject &sessionVar){
     const sr_dev_inst *const sdi = _session->get_device()->dev_inst();
    
     QJsonArray channelVar;
-    sessionVar["Version"]= QJsonValue::fromVariant(Session_Version);
+    sessionVar["Version"]= QJsonValue::fromVariant(BASE_SESSION_VERSION);
     sessionVar["Device"] = QJsonValue::fromVariant(sdi->driver->name);
     sessionVar["DeviceMode"] = QJsonValue::fromVariant(sdi->mode);
     sessionVar["Language"] = QJsonValue::fromVariant(app._frameOptions.language);
diff --git a/DSView/pv/mainwindow.h b/DSView/pv/mainwindow.h
index 4000fac8..607be76e 100755
--- a/DSView/pv/mainwindow.h
+++ b/DSView/pv/mainwindow.h
@@ -77,9 +77,6 @@ class MainWindow : public QMainWindow, public ISessionCallback, public IMainForm
 {
 	Q_OBJECT
 
-private:
-    static constexpr int Session_Version = 2;
-   
 public:
     explicit MainWindow(QWidget *parent = 0);