diff --git a/js/port_handler.js b/js/port_handler.js
index fe2e9610..88e022b3 100755
--- a/js/port_handler.js
+++ b/js/port_handler.js
@@ -135,6 +135,7 @@ PortHandler.check = function () {
             check_usb_devices();
         }
 
+        GUI.updateManualPortVisibility();
         setTimeout(function () {
             self.check();
         }, 250);
@@ -252,4 +253,4 @@ PortHandler.flush_callbacks = function () {
     }
 
     return killed;
-};
\ No newline at end of file
+};
diff --git a/js/serial_backend.js b/js/serial_backend.js
index 0780e6ed..cc0d1e33 100755
--- a/js/serial_backend.js
+++ b/js/serial_backend.js
@@ -2,7 +2,7 @@
 
 $(document).ready(function () {
 
-    var updateManualPortVisibility = function(){
+    GUI.updateManualPortVisibility = function(){
         if ($('div#port-picker #port option:selected').data().isManual) {
             $('#port-override-option').show();
         }
@@ -11,7 +11,7 @@ $(document).ready(function () {
         }
     };
 
-    updateManualPortVisibility();
+    GUI.updateManualPortVisibility();
 
     $('#port-override').change(function () {
         chrome.storage.local.set({'portOverride': $('#port-override').val()});
@@ -22,7 +22,7 @@ $(document).ready(function () {
     });
 
     $('div#port-picker #port').change(function (target) {
-        updateManualPortVisibility();
+        GUI.updateManualPortVisibility();
     });
 
     $('div#port-picker a.connect').click(function () {
@@ -53,7 +53,7 @@ $(document).ready(function () {
                     serial.disconnect(onClosed);
 
                     var wasConnected = CONFIGURATOR.connectionValid;
-                    
+
                     GUI.connected_to = false;
                     CONFIGURATOR.connectionValid = false;
                     GUI.allowedTabs = GUI.defaultAllowedTabsWhenDisconnected.slice();
@@ -79,7 +79,7 @@ $(document).ready(function () {
                         // detach listeners and remove element data
                         $('#content').empty();
                     }
-                    
+
                     $('#tabs .tab_landing a').click();
                 }
 
@@ -172,36 +172,36 @@ function onOpen(openInfo) {
             if (semver.gte(CONFIG.apiVersion, CONFIGURATOR.apiVersionAccepted)) {
 
                 MSP.send_message(MSP_codes.MSP_FC_VARIANT, false, false, function () {
-                    
+
                     MSP.send_message(MSP_codes.MSP_FC_VERSION, false, false, function () {
-                        
+
                         googleAnalytics.sendEvent('Firmware', 'Variant', CONFIG.flightControllerIdentifier + ',' + CONFIG.flightControllerVersion);
                         GUI.log(chrome.i18n.getMessage('fcInfoReceived', [CONFIG.flightControllerIdentifier, CONFIG.flightControllerVersion]));
-                        
+
                         MSP.send_message(MSP_codes.MSP_BUILD_INFO, false, false, function () {
-                            
+
                             googleAnalytics.sendEvent('Firmware', 'Using', CONFIG.buildInfo);
                             GUI.log(chrome.i18n.getMessage('buildInfoReceived', [CONFIG.buildInfo]));
-                            
+
                             MSP.send_message(MSP_codes.MSP_BOARD_INFO, false, false, function () {
-                                
+
                                 googleAnalytics.sendEvent('Board', 'Using', CONFIG.boardIdentifier + ',' + CONFIG.boardVersion);
                                 GUI.log(chrome.i18n.getMessage('boardInfoReceived', [CONFIG.boardIdentifier, CONFIG.boardVersion]));
-                                
+
                                 MSP.send_message(MSP_codes.MSP_UID, false, false, function () {
                                     GUI.log(chrome.i18n.getMessage('uniqueDeviceIdReceived', [CONFIG.uid[0].toString(16) + CONFIG.uid[1].toString(16) + CONFIG.uid[2].toString(16)]));
-                                    
+
                                     // continue as usually
                                     CONFIGURATOR.connectionValid = true;
                                     GUI.allowedTabs = GUI.defaultAllowedTabsWhenConnected.slice();
                                     if (semver.lt(CONFIG.apiVersion, "1.4.0")) {
                                         GUI.allowedTabs.splice(GUI.allowedTabs.indexOf('led_strip'), 1);
                                     }
-                                    
+
                                     GUI.canChangePidController = semver.gte(CONFIG.apiVersion, CONFIGURATOR.pidControllerChangeMinApiVersion);
 
                                     onConnect();
-                                    
+
                                     $('#tabs ul.mode-connected .tab_setup a').click();
                                 });
                             });
@@ -254,7 +254,7 @@ function onClosed(result) {
 
     $('#tabs ul.mode-connected').hide();
     $('#tabs ul.mode-disconnected').show();
-    
+
     var documentationButton = $('#button-documentation');
     documentationButton.hide();
 }
@@ -277,7 +277,7 @@ function sensor_status(sensors_detected) {
     if (sensor_status.previous_sensors_detected == sensors_detected) {
         return;
     }
-    
+
     // set current value
     sensor_status.previous_sensors_detected = sensors_detected;
 
@@ -359,4 +359,4 @@ function bit_set(num, bit) {
 
 function bit_clear(num, bit) {
     return num & ~(1 << bit);
-}
\ No newline at end of file
+}