diff --git a/examples/BASIC/BASIC.ino b/examples/BASIC/BASIC.ino
index 480afa0..ea1bb1b 100644
--- a/examples/BASIC/BASIC.ino
+++ b/examples/BASIC/BASIC.ino
@@ -224,7 +224,7 @@ static void failedHandler(String msg) {
 static void executeCo2Calibration(void) {
   /** Count down for co2CalibCountdown secs */
   for (int i = 0; i < SENSOR_CO2_CALIB_COUNTDOWN_MAX; i++) {
-    displayShowText("CO2 calib", "after",
+    displayShowText("CO2 calib.", "after",
                     String(SENSOR_CO2_CALIB_COUNTDOWN_MAX - i) + " sec");
     delay(1000);
   }
@@ -232,16 +232,16 @@ static void executeCo2Calibration(void) {
   if (ag.s8.setBaselineCalibration()) {
     displayShowText("Calib", "success", "");
     delay(1000);
-    displayShowText("Wait for", "finish", "...");
+    displayShowText("Wait to", "complete", "...");
     int count = 0;
     while (ag.s8.isBaseLineCalibrationDone() == false) {
       delay(1000);
       count++;
     }
-    displayShowText("Finish", "after", String(count) + " sec");
+    displayShowText("Finished", "after", String(count) + " sec");
     delay(DISPLAY_DELAY_SHOW_CONTENT_MS);
   } else {
-    displayShowText("Calib", "failure!!!", "");
+    displayShowText("Calibration", "failure", "");
     delay(DISPLAY_DELAY_SHOW_CONTENT_MS);
   }
 }
diff --git a/examples/OneOpenAir/OneOpenAir.ino b/examples/OneOpenAir/OneOpenAir.ino
index d794795..e3a09bd 100644
--- a/examples/OneOpenAir/OneOpenAir.ino
+++ b/examples/OneOpenAir/OneOpenAir.ino
@@ -152,8 +152,6 @@ void setup() {
   }
   Serial.println("Detected " + ag->getBoardName());
 
-  /** Init sensor */
-  boardInit();
   configuration.setAirGradient(ag);
   oledDisplay.setAirGradient(ag);
   stateMachine.setAirGradient(ag);
@@ -162,11 +160,13 @@ void setup() {
   openMetrics.setAirGradient(ag);
   localServer.setAirGraident(ag);
 
+  /** Init sensor */
+  boardInit();
+
   /** Connecting wifi */
   bool connectToWifi = false;
   if (ag->isOne()) {
     if (ledBarButtonTest) {
-      stateMachine.executeLedBarPowerUpTest();
       if (ag->button.getState() == PushButton::BUTTON_PRESSED) {
         WiFi.begin("airgradient", "cleanair");
         Serial.println("WiFi Credential reset to factory defaults");
@@ -241,6 +241,9 @@ void setup() {
         } else {
           ledBarEnabledUpdate();
         }
+      } else {
+        oledDisplay.showRebooting();
+        delay(2500);
       }
     }
   }
@@ -465,9 +468,10 @@ static void ledBarEnabledUpdate(void) {
     if ((brightness == 0) || (configuration.getLedBarMode() == LedBarModeOff)) {
       ag->ledBar.setEnable(false);
     } else {
-      ag->ledBar.setBrighness(brightness);
+      ag->ledBar.setBrightness(brightness);
       ag->ledBar.setEnable(configuration.getLedBarMode() != LedBarModeOff);
     }
+     ag->ledBar.show();
   }
 }
 
@@ -643,6 +647,23 @@ static void oneIndoorInit(void) {
   ag->button.begin();
   ag->watchdog.begin();
 
+  /** Run LED test on start up if button pressed */
+  oledDisplay.setText("Press now for", "LED test", "");
+  ledBarButtonTest = false;
+  uint32_t stime = millis();
+  while (true) {
+    if (ag->button.getState() == ag->button.BUTTON_PRESSED) {
+      ledBarButtonTest = true;
+      stateMachine.executeLedBarPowerUpTest();
+      break;
+    }
+    delay(1);
+    uint32_t ms = (uint32_t)(millis() - stime);
+    if (ms >= 3000) {
+      break;
+    }
+  }
+
   /** Init sensor SGP41 */
   if (sgp41Init() == false) {
     dispSensorNotFound("SGP41");
@@ -669,22 +690,6 @@ static void oneIndoorInit(void) {
 
     dispSensorNotFound("PMS");
   }
-
-  /** Run LED test on start up */
-  oledDisplay.setText("Press now for", "LED test", "");
-  ledBarButtonTest = false;
-  uint32_t stime = millis();
-  while (true) {
-    if (ag->button.getState() == ag->button.BUTTON_PRESSED) {
-      ledBarButtonTest = true;
-      break;
-    }
-    delay(1);
-    uint32_t ms = (uint32_t)(millis() - stime);
-    if (ms >= 3000) {
-      break;
-    }
-  }
 }
 static void openAirInit(void) {
   configuration.hasSensorSHT = false;
@@ -832,10 +837,6 @@ static void configUpdateHandle() {
     return;
   }
 
-  if (ag->isOne()) {
-    ledBarEnabledUpdate();
-    stateMachine.executeLedBarTest();
-  }
   stateMachine.executeCo2Calibration();
 
   String mqttUri = configuration.getMqttBrokerUri();
@@ -871,15 +872,36 @@ static void configUpdateHandle() {
 
   if (ag->isOne()) {
     if (configuration.isLedBarBrightnessChanged()) {
-      ag->ledBar.setBrighness(configuration.getLedBarBrightness());
-      Serial.println("Set 'LedBarBrightness' brightness: " +
-                     String(configuration.getLedBarBrightness()));
+      if (configuration.getLedBarBrightness() == 0) {
+        ag->ledBar.setEnable(false);
+      } else {
+        if (configuration.getLedBarMode() != LedBarMode::LedBarModeOff) {
+          ag->ledBar.setEnable(true);
+        }
+        ag->ledBar.setBrightness(configuration.getLedBarBrightness());
+      }
+      ag->ledBar.show();
     }
+
+    if (configuration.isLedBarModeChanged()) {
+      if (configuration.getLedBarBrightness() == 0) {
+        ag->ledBar.setEnable(false);
+      } else {
+        if(configuration.getLedBarMode() == LedBarMode::LedBarModeOff) {
+          ag->ledBar.setEnable(false);
+        } else {
+          ag->ledBar.setEnable(true);
+          ag->ledBar.setBrightness(configuration.getLedBarBrightness());
+        }
+      }
+      ag->ledBar.show();
+    }
+
     if (configuration.isDisplayBrightnessChanged()) {
       oledDisplay.setBrightness(configuration.getDisplayBrightness());
-      Serial.println("Set 'DisplayBrightness' brightness: " +
-                     String(configuration.getDisplayBrightness()));
     }
+
+    stateMachine.executeLedBarTest();
   }
 
   fwNewVersion = configuration.newFirmwareVersion();
diff --git a/src/AgConfigure.cpp b/src/AgConfigure.cpp
index 2fc5536..0173edb 100644
--- a/src/AgConfigure.cpp
+++ b/src/AgConfigure.cpp
@@ -372,6 +372,7 @@ bool Configuration::parse(String data, bool isLocal) {
     }
   }
 
+  _ledBarModeChanged = false;
   if (JSON.typeof_(root[jprop_ledBarMode]) == "string") {
     String mode = root[jprop_ledBarMode];
     if (mode == getLedBarModeName(LedBarMode::LedBarModeCO2) ||
@@ -380,6 +381,7 @@ bool Configuration::parse(String data, bool isLocal) {
       String oldMode = jconfig[jprop_ledBarMode];
       if (mode != oldMode) {
         jconfig[jprop_ledBarMode] = mode;
+        _ledBarModeChanged = true;
         changed = true;
       }
     } else {
@@ -559,6 +561,7 @@ bool Configuration::parse(String data, bool isLocal) {
     }
   }
 
+  ledBarBrightnessChanged = false;
   if (JSON.typeof_(root[jprop_ledBarBrightness]) == "number") {
     int value = root[jprop_ledBarBrightness];
     int oldValue = jconfig[jprop_ledBarBrightness];
@@ -1147,6 +1150,12 @@ void Configuration::setOfflineModeWithoutSave(bool offline) {
   _offlineMode = offline;
 }
 
+bool Configuration::isLedBarModeChanged(void) { 
+  bool changed = _ledBarModeChanged;
+  _ledBarModeChanged = false;
+  return changed;
+}
+
 bool Configuration::isDisplayBrightnessChanged(void) {
   bool changed = displayBrightnessChanged;
   displayBrightnessChanged = false;
diff --git a/src/AgConfigure.h b/src/AgConfigure.h
index c3eda36..24473ec 100644
--- a/src/AgConfigure.h
+++ b/src/AgConfigure.h
@@ -18,6 +18,7 @@ private:
   bool displayBrightnessChanged = false;
   String otaNewFirmwareVersion;
   bool _offlineMode = false;
+  bool _ledBarModeChanged = false;
 
   AirGradient* ag;
 
@@ -80,6 +81,7 @@ public:
   bool isOfflineMode(void);
   void setOfflineMode(bool offline);
   void setOfflineModeWithoutSave(bool offline);
+  bool isLedBarModeChanged(void);
 };
 
 #endif /** _AG_CONFIG_H_ */
diff --git a/src/AgOledDisplay.cpp b/src/AgOledDisplay.cpp
index bd8ee95..329d56f 100644
--- a/src/AgOledDisplay.cpp
+++ b/src/AgOledDisplay.cpp
@@ -410,3 +410,13 @@ void OledDisplay::showFirmwareUpdateUpToDate(void) {
     setCentralText(40, "up to date");
   } while (DISP()->nextPage());
 }
+
+void OledDisplay::showRebooting(void) {
+  DISP()->firstPage();
+  do {
+    DISP()->setFont(u8g2_font_t0_16_tf);
+    // setCentralText(20, "Firmware Update");
+    setCentralText(40, "Rebooting...");
+    // setCentralText(60, String("Retry after 24h"));
+  } while (DISP()->nextPage());
+}
diff --git a/src/AgOledDisplay.h b/src/AgOledDisplay.h
index 4073f0f..85bd2e0 100644
--- a/src/AgOledDisplay.h
+++ b/src/AgOledDisplay.h
@@ -42,6 +42,7 @@ public:
   void showFirmwareUpdateFailed(void);
   void showFirmwareUpdateSkipped(void);
   void showFirmwareUpdateUpToDate(void);
+  void showRebooting(void);
 };
 
 #endif /** _AG_OLED_DISPLAY_H_ */
diff --git a/src/Main/LedBar.cpp b/src/Main/LedBar.cpp
index b00f36c..63aed35 100644
--- a/src/Main/LedBar.cpp
+++ b/src/Main/LedBar.cpp
@@ -64,7 +64,7 @@ void LedBar::setColor(uint8_t red, uint8_t green, uint8_t blue, int ledNum) {
  *
  * @param brightness Brightness (0 - 100)%
  */
-void LedBar::setBrighness(uint8_t brightness) {
+void LedBar::setBrightness(uint8_t brightness) {
   if (this->isBegin() == false) {
     return;
   }
diff --git a/src/Main/LedBar.h b/src/Main/LedBar.h
index 777ed24..576951a 100644
--- a/src/Main/LedBar.h
+++ b/src/Main/LedBar.h
@@ -19,7 +19,7 @@ public:
   void begin(void);
   void setColor(uint8_t red, uint8_t green, uint8_t blue, int ledNum);
   void setColor(uint8_t red, uint8_t green, uint8_t blue);
-  void setBrighness(uint8_t brightness);
+  void setBrightness(uint8_t brightness);
   int getNumberOfLeds(void);
   void show(void);
   void clear(void);