diff --git a/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.c b/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.c
index 50269dace..933376c03 100755
--- a/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.c
+++ b/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.c
@@ -63,6 +63,7 @@ void SF_StrgInit(void)
         sf_mmc_dev[i]->space_state       = MMC_DEV_SPACE_STATE_ENOUGH;
         sf_mmc_dev[i]->loop_state        = MMC_DEV_LOOP_STATE_OFF;
     }
+	pMMCDev = (SF_ST_MMC_DEV *)malloc(sizeof(SF_ST_MMC_DEV));
 }
 
 void SF_StrgUnInit(void)
@@ -74,6 +75,8 @@ void SF_StrgUnInit(void)
             sf_mmc_dev[i] = NULL;
         }
     }
+	free(pMMCDev);
+	pMMCDev = NULL;
 }
 
 void SF_StrgSetDcfHandle(UINT32 strg_id, UINT32 handle)
@@ -86,7 +89,6 @@ static UINT32 SF_StrgSpaceCheckFull(MMC_DEV_TYPE mmc_dev)
 	UINT64 diskFree = 0;
     UINT32 ret = 0;
 
-	return 0;
     /*check disk free size*/
 	if(mmc_dev == MMC_DEV_SD)
 	{
@@ -313,10 +315,12 @@ SF_ST_MMC_DEV *SF_StrgCheckWorkableDev(void)
 
 	if(workable_dev == MMC_DEV_NO)
 	{
+		MLOGD("Strg Check, No dev can use\n");
 		return NULL;
 	}
 	else
 	{
+		MLOGD("Strg Check, workable_dev = %d\n", workable_dev);
 		return sf_mmc_dev[workable_dev];
 	}
 }
@@ -326,9 +330,9 @@ static void* mmc_monitoring_thread(void *arg)
 	while(MMCMonitorTskCfg.IsRun)
 	{
 #if USE_MMC_DEV_CHECK
-		SF_SetMMCDev(SF_StrgCheckWorkableDev());
+		pMMCDev = SF_StrgCheckWorkableDev();
 #endif
-		sf_sleep_ms(500);
+		sf_sleep_ms(1000);
 	}
 	return NULL;
 }
@@ -341,6 +345,8 @@ int sf_mmc_dev_check_start(void)
 		MLOGD("thread sf_mmc_monitoring_start creat fail!\n");
 		return ret;
 	}
+	MMCMonitorTskCfg.IsRun = 1;
+	MLOGD("mmc_dev check create success!\n");
 	return 0;
 }
 
diff --git a/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.h b/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.h
index 3f41d8abe..d28c801c5 100755
--- a/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.h
+++ b/code/application/source/cardv/SrcCode/System/SF_SysStrgMng.h
@@ -32,7 +32,7 @@
 #define EMMC_DEVICE_NAME                          "/dev/mmcblk1p1"
 #define EMMC_MOUNT_ROOT                           "/mnt/sd2"
 
-#define USE_MMC_DEV_CHECK	(1)
+#define USE_MMC_DEV_CHECK	(0)
 
 typedef enum
 {
diff --git a/code/application/source/cardv/SrcCode/System/main.c b/code/application/source/cardv/SrcCode/System/main.c
index dc35fae74..38f2c5cc8 100755
--- a/code/application/source/cardv/SrcCode/System/main.c
+++ b/code/application/source/cardv/SrcCode/System/main.c
@@ -447,7 +447,9 @@ int NvtMain(void)
         printf("create cardv message successs!!!!\n");
     }
     sf_cardv_message_thread_init();
-    
+#if USE_MMC_DEV_CHECK
+	sf_mmc_dev_check_start();
+#endif    
     SF_MESSAGE_BUF_S stMessageBuf = {0};
 
     /*if(!sf_gpio_get_status(GPIO_KEY_TEST)){
@@ -476,8 +478,6 @@ int NvtMain(void)
     sf_led_init();
     #endif
     sf_sd_exist_reg_cb(DrvCARD_DetStrgCard);
-
-	sf_mmc_dev_check_start();
 	#endif
 
 	System_WaitForPowerOffStart();  // Wait for shutdown cmd
diff --git a/code/application/source/cardv/SrcCode/UIApp/Photo/UIStorageCheck.c b/code/application/source/cardv/SrcCode/UIApp/Photo/UIStorageCheck.c
index 97c8e4dfb..5a2b0aedf 100755
--- a/code/application/source/cardv/SrcCode/UIApp/Photo/UIStorageCheck.c
+++ b/code/application/source/cardv/SrcCode/UIApp/Photo/UIStorageCheck.c
@@ -38,9 +38,10 @@
 #define __DBGFLT__          "*" //*=All, [mark]=CustomClass
 #include <kwrap/debug.h>
 #include "SF_SysStrgMng.h"
+#if USE_MMC_DEV_CHECK
 
 SF_ST_MMC_DEV *mmc_dev = NULL;
-
+#endif
 void UIStorageCheck_AllSize(UINT64 *uiTotal, UINT64 *uiRemain)
 {
 	(*uiTotal) = FileSys_GetDiskInfo(FST_INFO_DISK_SIZE);
@@ -257,9 +258,11 @@ BOOL UIStorageCheck(UINT32 uiCheckItem, UINT32 *pFreeCount)
 	UINT32 useFileDB = 0;
 	useFileDB = UI_GetData(FL_IsUseFileDB);
 
-	mmc_dev = SF_GetMMCDev();
+	
 	DBG_IND("UI_StorageCheck: Check item = 0x%x\r\n", uiCheckItem);
 #if USE_MMC_DEV_CHECK
+	mmc_dev = SF_GetMMCDev();
+
 	if(mmc_dev == NULL)
 	{
 		DBG_ERR("No MMC_Dev Can use!\n");
diff --git a/rtos/code/application/source/cardv/SrcCode/System/sys_filesys.c b/rtos/code/application/source/cardv/SrcCode/System/sys_filesys.c
index d58c67edb..80f9c79fc 100755
--- a/rtos/code/application/source/cardv/SrcCode/System/sys_filesys.c
+++ b/rtos/code/application/source/cardv/SrcCode/System/sys_filesys.c
@@ -63,8 +63,9 @@ static void card_insert_job(void)
 	// call the function to wait init finish
 	FileSys_WaitFinishEx('A');
     FileSys_SetParamEx('A', FST_PARM_UPDATE_FSINFO , TRUE);
-
+#if USE_RTOS_MMC_CHECK
 	SF_RtosStrgRegister(0, ret);
+#endif
 #if HUNTING_CAMERA_MCU == ENABLE
     if(TRUE == sf_check_card_full())
     {
@@ -122,7 +123,9 @@ static void card_insert_job2(void)
 
 	FileSys_WaitFinishEx('B');
     FileSys_SetParamEx('B', FST_PARM_UPDATE_FSINFO , TRUE);
+#if USE_RTOS_MMC_CHECK
 	SF_RtosStrgRegister(1, ret);
+#endif
 	fastboot_set_done(BOOT_INIT_FILESYSOK_2);
 	printf("filesys2_init e\r\n");
 
@@ -143,7 +146,9 @@ static void sys_detect_card_task(void)
 #if defined(_EMBMEM_EMMC_)
 	THREAD_ENTRY();
 
+#if USE_RTOS_MMC_CHECK
 	SF_RtosStrgInit();
+#endif
 	card_insert_job();
 
 	THREAD_RETURN(0);
@@ -176,7 +181,9 @@ static void sys_detect_card_task(void)
 
 		vTaskDelay(pdMS_TO_TICKS(1000));
 	}
+#if USE_RTOS_MMC_CHECK
 	SF_RtosStrgUnInit();
+#endif
 	THREAD_RETURN(0);
 #endif
 }
diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/MovieFast/MovieFast.c b/rtos/code/application/source/cardv/SrcCode/UIApp/MovieFast/MovieFast.c
index 63e0abaf7..f8a5f4f93 100644
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/MovieFast/MovieFast.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/MovieFast/MovieFast.c
@@ -1172,6 +1172,7 @@ static void MovieFast_UserEventCb(UINT32 id, MOVIE_USER_CB_EVENT event_id, UINT3
 					char tmp[256] = {'\0'};
 
                     #if HUNTING_CAMERA_MCU == ENABLE
+#if USE_RTOS_MMC_CHECK					
 					SF_RTOS_ST_MMC_DEV *mmc_dev = SF_RtosStrgCheckWorkableDev();
 					if(mmc_dev->dcf_handle < 0)
 					{
@@ -1188,7 +1189,9 @@ static void MovieFast_UserEventCb(UINT32 id, MOVIE_USER_CB_EVENT event_id, UINT3
 							snprintf(tmp, sizeof(tmp), "%c%s%s", 'B', MOVIE_THUMB_PATH, thumb_current_path); /* DCF 8.3 naming rule */
 						}
 					}
-					
+#else
+					snprintf(tmp, sizeof(tmp), "%c%s%s", 'A', MOVIE_THUMB_PATH, thumb_current_path); /* DCF 8.3 naming rule */
+#endif
                     #else
 					snprintf(tmp, sizeof(tmp), "%s%s", MOVIE_THUMB_PATH, (thumb_current_path + (length - 12))); /* DCF 8.3 naming rule */
 					snprintf(tmp + strlen(tmp) - 3, sizeof(tmp), "%s", "JPG");
@@ -1301,7 +1304,9 @@ THREAD_RETTYPE MovieFast_InitFileNamingThread(void *arg)
         if(TRUE != sf_is_card_full())
         #endif
         {
-			SF_RtosStrgSetDcfHandle(MMC_DEV_EMMC, g_dcf_hdl2);
+#if USE_RTOS_MMC_CHECK
+			SF_RtosStrgSetDcfHandle(MMC_DEV_EMMC, g_dcf_hdl);
+#endif
             fastboot_set_done(BOOT_INIT_FILENAMINGOK);
         }
 	}
@@ -1342,7 +1347,9 @@ THREAD_RETTYPE MovieFast_InitFileNamingThread2(void *arg)
         if(TRUE != sf_is_card_full())
         #endif
         {
-			SF_RtosStrgSetDcfHandle(MMC_DEV_SD,  g_dcf_hdl);
+#if USE_RTOS_MMC_CHECK
+			SF_RtosStrgSetDcfHandle(MMC_DEV_SD,  g_dcf_hdl2);
+#endif
 			fastboot_set_done(BOOT_INIT_FILENAMINGOK_2);
         }
 #endif
diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/Photo/UIAppPhoto_Exe.c b/rtos/code/application/source/cardv/SrcCode/UIApp/Photo/UIAppPhoto_Exe.c
index 329f61430..97a5875c3 100644
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/Photo/UIAppPhoto_Exe.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/Photo/UIAppPhoto_Exe.c
@@ -623,17 +623,21 @@ UINT32 PhotoExe_GetFreePicNum(void)
 	UINT32              reserveSize = 0x80000; //  500KB
 	UINT32              CaptureSize;
 	UINT32              size;
-
+	
+#if USE_RTOS_MMC_CHECK	
 	SF_RTOS_ST_MMC_DEV *mmc_dev = SF_RtosStrgCheckWorkableDev();
 	if(mmc_dev->dcf_handle < 0)
 	{
 		DBG_ERR("No MMC_Dev Can use!\n");
 		return FALSE;
 	}
+#endif
 
 #if (FILESIZE_ALIGN_FUNC)
 	reserveSize += FS_ALIGN_RESERVED_SIZE;
 #endif
+#if USE_RTOS_MMC_CHECK	
+
 	if(mmc_dev->dev_type == MMC_DEV_SD)
 	{
 		uiFreeSpace = FileSys_GetDiskInfoEx('A', FST_INFO_FREE_SPACE);
@@ -642,7 +646,9 @@ UINT32 PhotoExe_GetFreePicNum(void)
 	{
 		uiFreeSpace = FileSys_GetDiskInfoEx('B', FST_INFO_FREE_SPACE);
 	}
-
+#else
+	uiFreeSpace = FileSys_GetDiskInfoEx('A', FST_INFO_FREE_SPACE);
+#endif
 	DBG_IND("[cap]Free Space = %d KB\r\n", uiFreeSpace / 1024);
 
 	size = UI_GetData(FL_PHOTO_SIZE);
diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/Photo/UIStorageCheck.c b/rtos/code/application/source/cardv/SrcCode/UIApp/Photo/UIStorageCheck.c
index 65e981cf7..c8bfd5e97 100755
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/Photo/UIStorageCheck.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/Photo/UIStorageCheck.c
@@ -58,12 +58,15 @@ void UIStorageCheck_ResetFileReachMax(void)
 
 static BOOL check_CurrDir_writable(void)
 {
+#if USE_RTOS_MMC_CHECK	
+
 	SF_RTOS_ST_MMC_DEV *mmc_dev = SF_RtosStrgCheckWorkableDev();
 	if(mmc_dev->dcf_handle < 0)
 	{
 		DBG_ERR("No MMC_Dev Can use!\n");
 		return FALSE;
 	}
+#endif
 	UINT32 useFileDB = 0;
 	useFileDB = UI_GetData(FL_IsUseFileDB);
 
@@ -73,10 +76,15 @@ static BOOL check_CurrDir_writable(void)
 #if (USE_DCF == ENABLE)
 		UINT32 CurrDirID;
 		SDCFDIRINFO dirinfo = {0};
-
+#if USE_RTOS_MMC_CHECK	
 		CurrDirID = DCF_GetDBInfoEx(mmc_dev->dcf_handle, DCF_INFO_CUR_DIR_ID);
 		if (CurrDirID) {
 			if (DCF_GetDirInfoEx(mmc_dev->dcf_handle, CurrDirID, &dirinfo)) {
+#else
+		CurrDirID = DCF_GetDBInfo(DCF_INFO_CUR_DIR_ID);
+		if (CurrDirID) {
+			if (DCF_GetDirInfo(CurrDirID, &dirinfo)) {
+#endif
 				if (M_IsReadOnly(dirinfo.ucAttrib)) {
 					DBG_IND("DCF folder %d is READONLY.\r\n", CurrDirID);
 					return FALSE;
@@ -100,13 +108,15 @@ static BOOL check_CurrDir_writable(void)
 
 BOOL UIStorageCheck_DCIMWritable(void)
 {
+#if USE_RTOS_MMC_CHECK	
+
 	SF_RTOS_ST_MMC_DEV *mmc_dev = SF_RtosStrgCheckWorkableDev();
 	if(mmc_dev->dcf_handle < 0)
 	{
 		DBG_ERR("No MMC_Dev Can use!\n");
 		return FALSE;
 	}
-	
+#endif	
 	UINT32 useFileDB = 0;
 	useFileDB = UI_GetData(FL_IsUseFileDB);
 	if (useFileDB) {
@@ -115,6 +125,7 @@ BOOL UIStorageCheck_DCIMWritable(void)
 		INT32 uiStatus = 0;
 		UINT8  ucAttrib = 0;
 		BOOL   ret = FALSE;
+		#if USE_RTOS_MMC_CHECK	
 		if(mmc_dev->dev_type == MMC_DEV_SD)
 		{
 			uiStatus = FileSys_GetAttrib("A:\\DCIM", &ucAttrib);
@@ -123,6 +134,9 @@ BOOL UIStorageCheck_DCIMWritable(void)
 		{
 			uiStatus = FileSys_GetAttrib("B:\\DCIM", &ucAttrib);
 		}
+		#else
+			uiStatus = FileSys_GetAttrib("A:\\DCIM", &ucAttrib);
+		#endif
 
 		if (uiStatus == FST_STA_OK) {
 			if (ucAttrib & FS_ATTRIB_DIRECTORY) {
@@ -161,8 +175,11 @@ static BOOL UIStrgCheckFolderFull(DCF_HANDLE DcfHandle)
 		return TRUE;
 	}
 	bIsFileReachMax = FALSE;
-
+#if USE_RTOS_MMC_CHECK	
 	ret = DCF_GetNextIDEx(DcfHandle, &DCF_DirId, &DCF_FileId);
+#else
+	ret = DCF_GetNextID(&DCF_DirId, &DCF_FileId);
+#endif
 	if (ret && DCF_DirId == 0 && DCF_FileId == 0) {
 		bIsFileReachMax = TRUE;
 		DBG_IND("Next dir_id   =%d,   file_id = %d \r\n", DCF_DirId, DCF_FileId);
@@ -199,6 +216,8 @@ static BOOL UIStrgCheckFull(UINT32 *pFreeCount)
 
 static BOOL UIStrgCheckErr(MMC_DEV_TYPE dev_id)
 {
+#if USE_RTOS_MMC_CHECK	
+
 	if(dev_id == MMC_DEV_SD)
 	{
 		FileSys_WaitFinishEx('A');
@@ -207,7 +226,9 @@ static BOOL UIStrgCheckErr(MMC_DEV_TYPE dev_id)
 	{
 		FileSys_WaitFinishEx('B');
 	}
-	
+#else
+	FileSys_WaitFinishEx('A');
+#endif
 	if (System_GetState(SYS_STATE_FS) == FS_DISK_ERROR
 		|| System_GetState(SYS_STATE_FS) == FS_UNKNOWN_FORMAT
 		|| System_GetState(SYS_STATE_FS) == FS_UNFORMATTED
@@ -226,13 +247,15 @@ static BOOL UIStrgCheckErr(MMC_DEV_TYPE dev_id)
 
 BOOL UIStorageCheck(UINT32 uiCheckItem, UINT32 *pFreeCount)
 {
+#if USE_RTOS_MMC_CHECK	
+
 	SF_RTOS_ST_MMC_DEV *mmc_dev = SF_RtosStrgCheckWorkableDev();
 	if(mmc_dev->dcf_handle < 0)
 	{
 		DBG_ERR("No MMC_Dev Can use!\n");
 		return FALSE;
 	}
-
+#endif
 	UINT32 useFileDB = 0;
 	useFileDB = UI_GetData(FL_IsUseFileDB);
 
@@ -243,7 +266,11 @@ BOOL UIStorageCheck(UINT32 uiCheckItem, UINT32 *pFreeCount)
 		if (useFileDB) {
 			return FALSE;
 		} else {
+		#if USE_RTOS_MMC_CHECK	
 			UIStrgCheckFolderFull(mmc_dev->dcf_handle);
+		#else
+			UIStrgCheckFolderFull(0);
+		#endif
 		}
 		break;
 	case STORAGE_CHECK_FULL:
@@ -258,7 +285,12 @@ BOOL UIStorageCheck(UINT32 uiCheckItem, UINT32 *pFreeCount)
 		}
 		break;
 	case STORAGE_CHECK_ERROR:
-		UIStrgCheckErr(mmc_dev->dev_type);
+	
+		#if USE_RTOS_MMC_CHECK	
+			UIStrgCheckErr(mmc_dev->dev_type);
+		#else
+			UIStrgCheckErr(0);
+		#endif
 		break;
 	case STORAGE_CHECK_DCIM_READONLY:
 		if ((UIStorageCheck_DCIMWritable() == FALSE)
diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
index 4d5a4014c..ed8ad953c 100644
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
@@ -747,7 +747,9 @@ INT32 PhotoFast_FileNaming_Open(void)
 		}
 
 		DCF_ScanObjEx(g_dcf_hdl);
+#if USE_RTOS_MMC_CHECK
 		SF_RtosStrgSetDcfHandle(MMC_DEV_SD,  g_dcf_hdl);
+#endif
 	}
 	else{
 		DBG_WRN("dcf handle1 is already opened\n");
@@ -777,7 +779,9 @@ INT32 PhotoFast_FileNaming_Open2(void)
 
 		DBG_WRN("DCF_ScanObjEx emmc handle=%d\n", g_dcf_hdl2);
 		DCF_ScanObjEx(g_dcf_hdl2);
+	#if USE_RTOS_MMC_CHECK
 		SF_RtosStrgSetDcfHandle(MMC_DEV_EMMC, g_dcf_hdl2);
+	#endif
 	}
 	else{
 		DBG_WRN("dcf handle2 is already opened\n");
@@ -806,9 +810,11 @@ INT32 PhotoFast_FileNaming_Close(void)
 
 		DCF_UnInstallID();
 	}
+#if USE_RTOS_MMC_CHECK
+
 	SF_RtosStrgSetDcfHandle(MMC_DEV_SD,  g_dcf_hdl);
 	SF_RtosStrgSetDcfHandle(MMC_DEV_EMMC, g_dcf_hdl2);
-	
+#endif	
 	return 0;
 }
 
diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFastSliceEncode.c b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFastSliceEncode.c
index 436ddbb7c..b3f0dd3bb 100644
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFastSliceEncode.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFastSliceEncode.c
@@ -2389,6 +2389,7 @@ INT32 PhotoFast_SliceEncode_CB3(void* user_data)
     #endif
 
     #if HUNTING_CAMERA_MCU == ENABLE
+	#if USE_RTOS_MMC_CHECK	
 				SF_RTOS_ST_MMC_DEV *mmc_dev = SF_RtosStrgCheckWorkableDev();
 				if(mmc_dev->dcf_handle < 0)
 				{
@@ -2405,6 +2406,9 @@ INT32 PhotoFast_SliceEncode_CB3(void* user_data)
 						snprintf(tmp, sizeof(tmp), "%c%s%s", 'B', PHOTO_THUMB_PATH, file_path); /* DCF 8.3 naming rule */
 					}
 				}
+	#else
+				snprintf(tmp, sizeof(tmp), "%c%s%s", 'A', PHOTO_THUMB_PATH, file_path); /* DCF 8.3 naming rule */
+	#endif
     #else
                 UINT32 length = strlen(file_path);
                 snprintf(tmp, sizeof(tmp), "%s%s", PHOTO_THUMB_PATH, file_path + length - 12); /* DCF 8.3 naming rule */
diff --git a/rtos/code/driver/na51089/include/sf_sd_common.h b/rtos/code/driver/na51089/include/sf_sd_common.h
index 6c6635ab9..75255f960 100755
--- a/rtos/code/driver/na51089/include/sf_sd_common.h
+++ b/rtos/code/driver/na51089/include/sf_sd_common.h
@@ -22,6 +22,8 @@
 
 #define MMC_DEV_MAX_NUM (2)
 
+#define USE_RTOS_MMC_CHECK 		(0)
+
 typedef enum
 {
 	MMC_DEV_SD = 0,