diff --git a/code/application/source/cardv/SrcCode/Dx/565_HUNTING_EVB_LINUX_4G_S550/IOCfg.h b/code/application/source/cardv/SrcCode/Dx/565_HUNTING_EVB_LINUX_4G_S550/IOCfg.h
index 1147df5c6..82e78eed7 100755
--- a/code/application/source/cardv/SrcCode/Dx/565_HUNTING_EVB_LINUX_4G_S550/IOCfg.h
+++ b/code/application/source/cardv/SrcCode/Dx/565_HUNTING_EVB_LINUX_4G_S550/IOCfg.h
@@ -345,6 +345,7 @@ extern BOOL     GPIOMap_DetPoweroff(void);
 #define SF_ADC_MUXA                 DSI_GPIO_0
 #define SF_ADC_MUXB                 DSI_GPIO_1
 #define SF_WIFI_EN                  P_GPIO_11
+#define SF_BT_EN                    L_GPIO_2
 
 #define LED_FOCUS_CTRL              LED_RED_DUMMY
 #define GPIO_FOCUS_LED              x_GPIO_x  //FPGA
diff --git a/code/application/source/cardv/SrcCode/System/SysMain_Exe.c b/code/application/source/cardv/SrcCode/System/SysMain_Exe.c
index 468c729db..e5b987596 100755
--- a/code/application/source/cardv/SrcCode/System/SysMain_Exe.c
+++ b/code/application/source/cardv/SrcCode/System/SysMain_Exe.c
@@ -466,11 +466,16 @@ INT32 System_OnShutdown(VControl *pCtrl, UINT32 paramNum, UINT32 *paramArray)
 			DBG_ERR("lens error **********\r\n");
 		} else {
 #if (POWEROFFLOGO_FUNCTION == ENABLE)
-			GxDisplay_Set(LAYER_OSD1, LAYER_STATE_ENABLE, 0); //turn off OSD1
-			GxDisplay_Flush(LAYER_OSD1);
+            #if HUNTING_CAMERA_MCU == ENABLE
+            if(sf_get_mode_flag())
+            #endif
+            {
+                GxDisplay_Set(LAYER_OSD1, LAYER_STATE_ENABLE, 0); //turn off OSD1
+                GxDisplay_Flush(LAYER_OSD1);
 
-			Display_ShowSplash(SPLASH_POWEROFF);
-			SwTimer_DelayMs(500);
+                Display_ShowSplash(SPLASH_POWEROFF);
+                SwTimer_DelayMs(500);
+            }
 #endif
 		}
         #if HUNTING_CAMERA_MCU == ENABLE
diff --git a/code/application/source/sf_app/build/rtk_hciattach b/code/application/source/sf_app/build/rtk_hciattach
new file mode 100755
index 000000000..7e6d4832e
Binary files /dev/null and b/code/application/source/sf_app/build/rtk_hciattach differ
diff --git a/code/application/source/sf_app/build/rtl8723d_config b/code/application/source/sf_app/build/rtl8723d_config
new file mode 100755
index 000000000..edde876e7
Binary files /dev/null and b/code/application/source/sf_app/build/rtl8723d_config differ
diff --git a/code/application/source/sf_app/build/rtl8723d_fw b/code/application/source/sf_app/build/rtl8723d_fw
new file mode 100755
index 000000000..6d54ef0f1
Binary files /dev/null and b/code/application/source/sf_app/build/rtl8723d_fw differ
diff --git a/code/application/source/sf_app/code/include/sf_device.h b/code/application/source/sf_app/code/include/sf_device.h
index 23a47f83e..1cb8b81d4 100644
--- a/code/application/source/sf_app/code/include/sf_device.h
+++ b/code/application/source/sf_app/code/include/sf_device.h
@@ -55,6 +55,8 @@ void sf_set_pir_statu_flag(SINT32 flag);
 
 BOOL sf_load_ko(void);
 
+BOOL sf_load_bt_ko(void);
+
 SINT32 sf_in_update(void);
 
 #ifdef __cplusplus
diff --git a/code/application/source/sf_app/code/include/sf_hal_gpio.h b/code/application/source/sf_app/code/include/sf_hal_gpio.h
index d2f930a90..418d1609b 100755
--- a/code/application/source/sf_app/code/include/sf_hal_gpio.h
+++ b/code/application/source/sf_app/code/include/sf_hal_gpio.h
@@ -29,6 +29,7 @@ int sf_app_pir_statu_read(void);
 UINT32 sf_app_data_ready_read(void);
 
 void sf_set_wifi_en(UINT32 cnt);
+void sf_set_bt_en(UINT32 cnt);
 #ifdef __cplusplus
 #if __cplusplus
 }
diff --git a/code/application/source/sf_app/code/source/app/sf_app.c b/code/application/source/sf_app/code/source/app/sf_app.c
index de4d24fff..d60980f9f 100755
--- a/code/application/source/sf_app/code/source/app/sf_app.c
+++ b/code/application/source/sf_app/code/source/app/sf_app.c
@@ -155,9 +155,13 @@ int main(int argc, char *argv[])
     if((!isUsb) && (SF_MCU_STARTUP_NORMAL != startup) && (SF_MCU_STARTUP_OFF != startup)/*&& (0 == isUpdate)*/)
     {
         #if SF_IQ_TEST != ENABLE
-        if((0 == isUpdate) && (puiPara->GprsSwitch))
+        if(SF_MCU_STARTUP_ONKEY == startup)
         {
             sf_set_wifi_en(1);
+            sf_set_bt_en(1);
+        }
+        if((0 == isUpdate) && (puiPara->GprsSwitch))
+        {
             sf_4G_usb_init();
             app_RegisterNet_start();
         }
diff --git a/code/application/source/sf_app/code/source/app/sf_device.c b/code/application/source/sf_app/code/source/app/sf_device.c
index 5cb7cf871..f35a5a153 100755
--- a/code/application/source/sf_app/code/source/app/sf_device.c
+++ b/code/application/source/sf_app/code/source/app/sf_device.c
@@ -617,6 +617,18 @@ BOOL sf_load_ko(void)
 	return ret2;
 }
 
+BOOL sf_load_bt_ko(void)
+{
+    BOOL ret2 = TRUE;
+    int ret = 0;
+    ret = system("modprobe hci_uart");
+    if(0 != ret)
+    {
+        ret2 = FALSE;
+    }
+    //MLOGI("finsihed.\n");
+	return ret2;
+}
 SINT32 sf_in_update(void)
 {
     SINT8 regValue = 0;
diff --git a/code/application/source/sf_app/code/source/app/sf_system.c b/code/application/source/sf_app/code/source/app/sf_system.c
index 8b05728ce..89be789fa 100755
--- a/code/application/source/sf_app/code/source/app/sf_system.c
+++ b/code/application/source/sf_app/code/source/app/sf_system.c
@@ -1327,6 +1327,7 @@ void* sf_app_load_ko_thread(void *arg)
     
     sf_load_ko();
 
+    sf_load_bt_ko();
     /*if((SF_MCU_STARTUP_NORMAL != sf_poweron_type_get()) && (0 == sf_get_fw_update()))
     {
         #if SF_IQ_TEST != ENABLE
diff --git a/code/application/source/sf_app/code/source/gpio/sf_hal_gpio.c b/code/application/source/sf_app/code/source/gpio/sf_hal_gpio.c
index 67758310e..123296acd 100755
--- a/code/application/source/sf_app/code/source/gpio/sf_hal_gpio.c
+++ b/code/application/source/sf_app/code/source/gpio/sf_hal_gpio.c
@@ -194,6 +194,17 @@ void sf_set_wifi_en(UINT32 cnt)
     gpio_set_value(SF_WIFI_EN, cnt);
     printf("[%s:%d] e cnt:%d\n", __FUNCTION__, __LINE__,cnt);
 }
+void sf_set_bt_en(UINT32 cnt)
+{
+	static UINT8 state = 0;
+	if(0 == state)
+	{
+        state = 1;
+        gpio_direction_output(SF_BT_EN, 1);
+    }
+    gpio_set_value(SF_BT_EN, cnt);
+    printf("[%s:%d] e cnt:%d\n", __FUNCTION__, __LINE__,cnt);
+}
 
 #ifdef __cplusplus
 #if __cplusplus
diff --git a/rtos/code/application/source/cardv/SrcCode/System/SysMain_Exe.c b/rtos/code/application/source/cardv/SrcCode/System/SysMain_Exe.c
index dc9698a74..f8cf1eceb 100755
--- a/rtos/code/application/source/cardv/SrcCode/System/SysMain_Exe.c
+++ b/rtos/code/application/source/cardv/SrcCode/System/SysMain_Exe.c
@@ -16,7 +16,9 @@
 #include "Utility/SwTimer.h"
 #include "vendor_common.h"
 #include "UIApp/Network/EthCamAppNetwork.h"
-
+#if HUNTING_CAMERA_MCU == ENABLE
+#include "sf_mcu.h"
+#endif
 #define THIS_DBGLVL         2 // 0=FATAL, 1=ERR, 2=WRN, 3=UNIT, 4=FUNC, 5=IND, 6=MSG, 7=VALUE, 8=USER
 ///////////////////////////////////////////////////////////////////////////////
 #define __MODULE__          SysMainExe
@@ -393,11 +395,16 @@ INT32 System_OnShutdown(VControl *pCtrl, UINT32 paramNum, UINT32 *paramArray)
 			DBG_ERR("lens error **********\r\n");
 		} else {
 #if (POWEROFFLOGO_FUNCTION == ENABLE)
-			GxDisplay_Set(LAYER_OSD1, LAYER_STATE_ENABLE, 0); //turn off OSD1
-			GxDisplay_Flush(LAYER_OSD1);
+            #if HUNTING_CAMERA_MCU == ENABLE
+            if(sf_get_mode_flag())
+            #endif
+            {
+                GxDisplay_Set(LAYER_OSD1, LAYER_STATE_ENABLE, 0); //turn off OSD1
+                GxDisplay_Flush(LAYER_OSD1);
 
-			Display_ShowSplash(SPLASH_POWEROFF);
-			SwTimer_DelayMs(500);
+                Display_ShowSplash(SPLASH_POWEROFF);
+                SwTimer_DelayMs(500);
+            }
 #endif
 		}
 
diff --git a/rtos/code/application/source/cardv/SrcCode/System/sys_linuxboot.c b/rtos/code/application/source/cardv/SrcCode/System/sys_linuxboot.c
index d3e3d7467..b6e35ca31 100755
--- a/rtos/code/application/source/cardv/SrcCode/System/sys_linuxboot.c
+++ b/rtos/code/application/source/cardv/SrcCode/System/sys_linuxboot.c
@@ -34,7 +34,7 @@
 //#define CFG_LINUX_COMP_MAX_SIZE 0xA00000 //max uImage size
 //#define CFG_RAMFS_COMP_MAX_SIZE 0x500000 //max ramdisk size
 #define CFG_LINUX_COMP_MAX_SIZE 0x300000 //max uImage size
-#define CFG_RAMFS_COMP_MAX_SIZE 0x320000 //max ramdisk size
+#define CFG_RAMFS_COMP_MAX_SIZE 0x330000 //max ramdisk size
 
 #define CFG_MULTI_MKIMAGE_LEN 0x8 //mkimage's multi image always comes 8 bytes for sub-image size
 #define CFG_GZ_WORK_SIZE 0x10000 //64KB are enough