diff --git a/main/audio/codecs/es8388_audio_codec.cc b/main/audio/codecs/es8388_audio_codec.cc
index aa26ae77..f3fd6fbb 100644
--- a/main/audio/codecs/es8388_audio_codec.cc
+++ b/main/audio/codecs/es8388_audio_codec.cc
@@ -186,9 +186,6 @@ void Es8388AudioCodec::EnableOutput(bool enable) {
 
         // Set analog output volume to 0dB, default is -45dB
         uint8_t reg_val = 30; // 0dB
-        if(input_reference_){
-            reg_val = 27;
-        }
         uint8_t regs[] = { 46, 47, 48, 49 }; // HP_LVOL, HP_RVOL, SPK_LVOL, SPK_RVOL
         for (uint8_t reg : regs) {
             ctrl_if_->write_reg(ctrl_if_, reg, 1, &reg_val, 1);
diff --git a/main/boards/yunliao-s3/README.md b/main/boards/yunliao-s3/README.md
index a4946b44..0cf6973f 100644
--- a/main/boards/yunliao-s3/README.md
+++ b/main/boards/yunliao-s3/README.md
@@ -49,8 +49,8 @@
 > | 单手机配网     | X      | ✓      |
 > | 扫码访问控制台 | X      | ✓      |
 > | 繁日英文界面   | X      | ✓      |
-> | 多语言支持     | X      | ✓      |
-> | 外接蓝牙音箱   | X      | ✓      |
+> | 多语言支持     | 需自行编译      | ✓      |
+> | 外接蓝牙音箱   | ✓      | ✓      |
 
 # 编译配置命令
 
diff --git a/main/boards/yunliao-s3/config.h b/main/boards/yunliao-s3/config.h
index be740022..4f2b9d61 100644
--- a/main/boards/yunliao-s3/config.h
+++ b/main/boards/yunliao-s3/config.h
@@ -22,7 +22,9 @@
 
 #define BOOT_BUTTON_PIN         GPIO_NUM_2
 #define BOOT_5V_PIN             GPIO_NUM_3      //5V升压输出
-#define BOOT_4G_PIN             GPIO_NUM_5      //4G模块使能
+#define MON_BTLINK_PIN          GPIO_NUM_4      //检测BT连接状态
+#define BOOT_4G5V_PIN           GPIO_NUM_5      //4G模块供电
+#define BOOT_4GEN_PIN           GPIO_NUM_6      //4G模块使能
 #define MON_BATT_PIN            GPIO_NUM_43    	//检测PMU电池指示
 #define MON_BATT_CNT            70    	        //检测PMU电池秒数
 #define MON_USB_PIN				GPIO_NUM_47    	//检测USB插入
@@ -49,7 +51,7 @@
 #define DISPLAY_SWAP_XY true
 #define DISPLAY_MIRROR_X false
 #define DISPLAY_MIRROR_Y true
-#define DISPLAY_INVERT_COLOR false
+#define DISPLAY_INVERT_COLOR true
 #define DISPLAY_RGB_ORDER_COLOR LCD_RGB_ELEMENT_ORDER_RGB
 
 #define DISPLAY_OFFSET_X  0
diff --git a/main/boards/yunliao-s3/power_manager.cc b/main/boards/yunliao-s3/power_manager.cc
index 6a8ef74c..d6cc2d12 100644
--- a/main/boards/yunliao-s3/power_manager.cc
+++ b/main/boards/yunliao-s3/power_manager.cc
@@ -42,6 +42,8 @@ static void calBattLife() {
 }
 
 PowerManager::PowerManager(){
+    m_bt_task_handle = nullptr;
+    bt_link_callback_ = nullptr;
 }
 
 void PowerManager::Initialize(){
@@ -57,7 +59,7 @@ void PowerManager::Initialize(){
 
     // 初始化4G控制引脚
     gpio_config_t io_conf_4g = {
-        .pin_bit_mask = 1<<BOOT_4G_PIN,
+        .pin_bit_mask = (1<<BOOT_4G5V_PIN) | (1<<BOOT_4GEN_PIN),
         .mode = GPIO_MODE_OUTPUT,
         .pull_up_en = GPIO_PULLUP_DISABLE,
         .pull_down_en = GPIO_PULLDOWN_ENABLE,
@@ -175,19 +177,28 @@ void PowerManager::Shutdown5V() {
 }
 
 void PowerManager::Start4G() {
-    gpio_set_level(BOOT_4G_PIN, 1);
+    gpio_set_level(BOOT_4G5V_PIN, 1);
 }
 
 void PowerManager::Shutdown4G() {
-    gpio_set_level(BOOT_4G_PIN, 0);
+    gpio_set_level(BOOT_4G5V_PIN, 0);
     gpio_set_level(ML307_RX_PIN,1);
     gpio_set_level(ML307_TX_PIN,1);
 }
 
+void PowerManager::Enable4G() {
+    gpio_set_level(BOOT_4GEN_PIN, 1);
+}
+
+void PowerManager::Disable4G() {
+    gpio_set_level(BOOT_4GEN_PIN, 0);
+}
+
 void PowerManager::Sleep() {
     ESP_LOGI(TAG, "Entering deep sleep");
     Settings settings("board", true);
     settings.SetInt("sleep_flag", 1);
+    Disable4G();
     Shutdown4G();
     Shutdown5V();
 
@@ -200,4 +211,68 @@ void PowerManager::Sleep() {
     ESP_ERROR_CHECK(rtc_gpio_pulldown_dis(BOOT_BUTTON_PIN));
     ESP_ERROR_CHECK(rtc_gpio_pullup_en(BOOT_BUTTON_PIN));
     esp_deep_sleep_start();
+}
+
+void PowerManager::InitializeBtModul() {
+    if (MON_BTLINK_PIN == GPIO_NUM_NC) {
+        ESP_LOGW(TAG, "MON_BTLINK_PIN not configured, skipping GPIO polling setup");
+        return;
+    }
+
+    gpio_config_t io_conf = {};
+    io_conf.intr_type = GPIO_INTR_DISABLE;
+    io_conf.pin_bit_mask = (1ULL << MON_BTLINK_PIN);
+    io_conf.mode = GPIO_MODE_INPUT;
+    io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
+    io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+    if (gpio_config(&io_conf) != ESP_OK) {
+        ESP_LOGE(TAG, "Failed to configure GPIO %d", MON_BTLINK_PIN);
+        return;
+    }
+    BaseType_t ret = xTaskCreate(BtTask, "bt_task", 2048, this, 10, &m_bt_task_handle);
+    if (ret != pdPASS) {
+        ESP_LOGE(TAG, "Failed to create BT task");
+        return;
+    }
+}
+
+void PowerManager::DeinitBtModul() {
+    if (MON_BTLINK_PIN == GPIO_NUM_NC) {
+        return;
+    }
+
+    if (m_bt_task_handle != nullptr) {
+        vTaskDelete(m_bt_task_handle);
+        m_bt_task_handle = nullptr;
+    }
+
+    gpio_reset_pin(MON_BTLINK_PIN);
+}
+
+void PowerManager::BtTask(void *arg) {
+    PowerManager *instance = static_cast<PowerManager *>(arg);
+    int last_level = -1;
+    for (;;) {
+        vTaskDelay(pdMS_TO_TICKS(100));
+        int level = gpio_get_level(MON_BTLINK_PIN);
+        if (level != last_level) {
+            last_level = level;
+            if (level == 1) {
+                ESP_LOGI(TAG, "BTLINK %d high - BT connected", MON_BTLINK_PIN);
+                if (instance->bt_link_callback_) {
+                    instance->bt_link_callback_(true);
+                }
+            } else {
+                ESP_LOGI(TAG, "BTLINK %d low - BT disconnected", MON_BTLINK_PIN);
+                if (instance->bt_link_callback_) {
+                    instance->bt_link_callback_(false);
+                }
+            }
+        }
+    }
+    vTaskDelete(NULL);
+}
+
+void PowerManager::OnBtLinkStatusChanged(std::function<void(bool)> callback) {
+    bt_link_callback_ = callback;
 } 
\ No newline at end of file
diff --git a/main/boards/yunliao-s3/power_manager.h b/main/boards/yunliao-s3/power_manager.h
index 921cf47a..47139d7e 100644
--- a/main/boards/yunliao-s3/power_manager.h
+++ b/main/boards/yunliao-s3/power_manager.h
@@ -21,17 +21,25 @@ public:
     void Shutdown5V();
     void Start4G();
     void Shutdown4G();
+    void Enable4G();
+    void Disable4G();
     void Sleep();
     void CheckBatteryStatus();
     void OnChargingStatusChanged(std::function<void(bool)> callback);
     void OnChargingStatusDisChanged(std::function<void(bool)> callback);
+    void OnBtLinkStatusChanged(std::function<void(bool)> callback);
+    void InitializeBtModul();
+    void DeinitBtModul();
 private:
     esp_timer_handle_t timer_handle_;
     std::function<void(bool)> charging_callback_;
     std::function<void(bool)> discharging_callback_;
+    std::function<void(bool)> bt_link_callback_;
     int is_charging_ = -1;
     int is_discharging_ = -1;
     int call_count_ = 0;
+    TaskHandle_t m_bt_task_handle;
+    static void BtTask(void *arg);
 };
 
 #endif
\ No newline at end of file
diff --git a/main/boards/yunliao-s3/yunliao_s3.cc b/main/boards/yunliao-s3/yunliao_s3.cc
index 57db4985..944fa285 100644
--- a/main/boards/yunliao-s3/yunliao_s3.cc
+++ b/main/boards/yunliao-s3/yunliao_s3.cc
@@ -153,6 +153,8 @@ class YunliaoS3 : public DualNetworkBoard {
             }), [this](const PropertyList& properties) {
                 bool enable = properties["enable"].value<bool>();
                 SetAecMode(enable);
+                Settings settings("aec", true);
+                settings.SetInt("mode", enable);
                 return true;
             });
 
@@ -169,8 +171,6 @@ class YunliaoS3 : public DualNetworkBoard {
         app.StopListening();
         app.SetDeviceState(kDeviceStateIdle);
         app.SetAecMode(newMode);
-        Settings settings("aec", true);
-        settings.SetInt("mode", newMode);
     }
     void SwitchTFT() {
         Settings settings("display", true);
@@ -203,11 +203,6 @@ class YunliaoS3 : public DualNetworkBoard {
                 }
             }
         });
-        if (GetNetworkType() == NetworkType::WIFI) {
-            power_manager_->Shutdown4G();
-        } else {
-            power_manager_->Start4G();
-        }
         GetBacklight()->RestoreBrightness();
         while (gpio_get_level(BOOT_BUTTON_PIN) == 0) {
             vTaskDelay(pdMS_TO_TICKS(10));
@@ -216,6 +211,16 @@ class YunliaoS3 : public DualNetworkBoard {
         Settings settings("aec", false);
         auto& app = Application::GetInstance();
         app.SetAecMode(settings.GetInt("mode",kAecOnDeviceSide) == kAecOnDeviceSide ? kAecOnDeviceSide : kAecOff);
+        power_manager_->Start4G();
+        if (GetNetworkType() == NetworkType::WIFI) {
+            power_manager_->Disable4G();
+        }else{
+            power_manager_->Enable4G();
+        }
+        power_manager_->OnBtLinkStatusChanged([this](bool is_connected) {
+            SetAecMode(!is_connected);
+        });
+        power_manager_->InitializeBtModul();
         InitializeTools();
     }