diff --git a/main/apps/app_power.cpp b/main/apps/app_power.cpp
index 4854a0b..a1842ed 100644
--- a/main/apps/app_power.cpp
+++ b/main/apps/app_power.cpp
@@ -23,6 +23,7 @@ void AppPower::onRunning()
     update_bat_voltage();
     update_icon_chg();
     update_shut_down_button();
+    check_low_battery_power_off();
 }
 
 void AppPower::update_bat_voltage()
@@ -71,3 +72,26 @@ void AppPower::update_shut_down_button()
         GetHAL().powerOff();
     }
 }
+
+void AppPower::check_low_battery_power_off()
+{
+    // Only auto power off when wifi start scanning
+    if (!AppWifi::is_wifi_start_scanning()) {
+        return;
+    }
+
+    if (GetHAL().millis() - _time_count.lowBat > 2000) {
+        bool is_usb_connected = GetHAL().isUsbConnected();
+        float battery_voltage = GetHAL().getBatteryVoltage();
+
+        if (!is_usb_connected && (battery_voltage < 3.8)) {
+            GetHAL().display.setEpdMode(epd_mode_t::epd_quality);
+            GetHAL().display.drawPng(img_logo_start, img_logo_end - img_logo_start, 0, 0);
+            GetHAL().delay(2000);
+
+            GetHAL().powerOff();
+        }
+
+        _time_count.lowBat = GetHAL().millis();
+    }
+}
diff --git a/main/apps/app_wifi.cpp b/main/apps/app_wifi.cpp
index 3eb8dd8..4d9d4b4 100644
--- a/main/apps/app_wifi.cpp
+++ b/main/apps/app_wifi.cpp
@@ -13,6 +13,12 @@
 
 using namespace mooncake;
 
+static bool _is_wifi_start_scanning = false;
+bool AppWifi::is_wifi_start_scanning()
+{
+    return _is_wifi_start_scanning;
+}
+
 void AppWifi::onCreate()
 {
     setAppInfo().name = "AppWifi";
@@ -95,8 +101,9 @@ void AppWifi::handle_state_first_scan()
         _scanning_mutex.unlock();
 
         if (!is_scanning) {
-            _state      = STATE_SCANNING_RESULT;
-            _time_count = 0;
+            _state                  = STATE_SCANNING_RESULT;
+            _is_wifi_start_scanning = true;
+            _time_count             = 0;
             return;
         }
 
diff --git a/main/apps/apps.h b/main/apps/apps.h
index c29b0e6..3cb9f8b 100644
--- a/main/apps/apps.h
+++ b/main/apps/apps.h
@@ -21,6 +21,7 @@ class AppPower : public mooncake::AppAbility {
     struct UpdateTimeCount_t {
         uint32_t batVoltage = 0;
         uint32_t iconChg    = 0;
+        uint32_t lowBat     = 0;
     };
     UpdateTimeCount_t _time_count;
     bool _current_icon_chg = false;
@@ -28,6 +29,7 @@ class AppPower : public mooncake::AppAbility {
     void update_bat_voltage();
     void update_icon_chg();
     void update_shut_down_button();
+    void check_low_battery_power_off();
 };
 
 /**
@@ -92,6 +94,8 @@ class AppWifi : public mooncake::AppAbility {
     void onCreate() override;
     void onRunning() override;
 
+    static bool is_wifi_start_scanning();
+
 private:
     enum State_t {
         STATE_IDLE = 0,
diff --git a/main/hal/hal.cpp b/main/hal/hal.cpp
index 47e9b99..8f68f7c 100644
--- a/main/hal/hal.cpp
+++ b/main/hal/hal.cpp
@@ -45,6 +45,7 @@ void Hal::init()
     M5.begin();
     M5.Display.setRotation(1);
 
+    rtc_init();
     power_init();
     sd_card_init();
     wifi_init();
@@ -57,6 +58,27 @@ void Hal::feedTheDog()
     vTaskDelay(5);
 }
 
+/* -------------------------------------------------------------------------- */
+/*                                     RTC                                    */
+/* -------------------------------------------------------------------------- */
+void Hal::rtc_init()
+{
+    mclog::tagInfo(_tag, "rtc init");
+
+    m5::rtc_date_t date;
+    date.year    = 2077;
+    date.month   = 1;
+    date.date    = 1;
+    date.weekDay = 1;
+
+    m5::rtc_time_t time;
+    time.hours   = 12;
+    time.minutes = 0;
+    time.seconds = 0;
+
+    M5.Rtc.setDateTime(&date, &time);
+}
+
 /* -------------------------------------------------------------------------- */
 /*                                    Power                                   */
 /* -------------------------------------------------------------------------- */
diff --git a/main/hal/hal.h b/main/hal/hal.h
index 0bb3fbc..641fe46 100644
--- a/main/hal/hal.h
+++ b/main/hal/hal.h
@@ -115,6 +115,7 @@ class Hal {
     WifiScanResult_t _wifi_scan_result;
     SdCardTestResult_t _sd_card_test_result;
 
+    void rtc_init();
     void power_init();
     void sd_card_init();
     void wifi_init();
diff --git a/main/main.cpp b/main/main.cpp
index 444bc09..c56bcbc 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -14,14 +14,28 @@
 
 using namespace mooncake;
 
-void draw_gray_scale_bars()
+void draw_firmware_version()
 {
     GetHAL().display.setEpdMode(epd_mode_t::epd_quality);
+    GetHAL().display.loadFont(font_montserrat_medium_36);
+    GetHAL().display.setTextDatum(middle_center);
+    GetHAL().display.setTextColor(TFT_BLACK);
+    GetHAL().display.drawString("FactoryTest: V0.4", GetHAL().display.width() / 2, GetHAL().display.height() / 2);
+}
+
+void draw_gray_scale_bars()
+{
     std::vector<uint32_t> colors = {0xffffff, 0xeeeeee, 0xdddddd, 0xcccccc, 0xbbbbbb, 0xaaaaaa, 0x999999, 0x888888,
                                     0x777777, 0x666666, 0x555555, 0x444444, 0x333333, 0x222222, 0x111111, 0x000000};
+
+    GetHAL().display.setEpdMode(epd_mode_t::epd_quality);
+    GetHAL().display.fillScreen(TFT_BLACK);
+    GetHAL().delay(800);
+    GetHAL().display.startWrite();
     for (int i = 0; i < 16; i++) {
         GetHAL().display.fillRect(i * 60, 0, 60, 540, colors[i]);
     }
+    GetHAL().display.endWrite();
 }
 
 void check_full_display_refresh_request(bool force = false)
@@ -42,8 +56,13 @@ void check_full_display_refresh_request(bool force = false)
 
 extern "C" void app_main(void)
 {
+    mclog::set_time_format(mclog::time_format_unix_seconds);
+
     GetHAL().init();
 
+    draw_firmware_version();
+    GetHAL().delay(2000);
+
     draw_gray_scale_bars();
     GetHAL().delay(3000);