diff --git a/code/application/source/sf_app/code/include/sf_param_enum.h b/code/application/source/sf_app/code/include/sf_param_enum.h
index 54c312b03..38361b441 100755
--- a/code/application/source/sf_app/code/include/sf_param_enum.h
+++ b/code/application/source/sf_app/code/include/sf_param_enum.h
@@ -146,7 +146,6 @@ extern "C" {
 #define SF_ERROR_CODE                  		"THUMB/warning.txt"
 #define SF_DAILYREPORT_TXT          		"DailyReport.txt"
 #define SF_LOG_TXT          		"log.txt"
-#define SF_LOW_POWER_WARN_FILENAME     "/THUMB/btalarm.txt"
 
 #define UPGRADE_FIRMWARE_NANE  (char*)"Mupgrade.bin"
 
diff --git a/code/application/source/sf_app/code/source/paramMng/sf_param_common.c b/code/application/source/sf_app/code/source/paramMng/sf_param_common.c
index f707a1343..5bf8a731c 100755
--- a/code/application/source/sf_app/code/source/paramMng/sf_param_common.c
+++ b/code/application/source/sf_app/code/source/paramMng/sf_param_common.c
@@ -67,6 +67,8 @@ SF_URL_S sfStOtaUrl = {0};
 SF_PDT_PARAM_CFG_S StCustomerParam = {0};
 SF_PDT_PARAM_STATISTICS_S Ststatistics= {0};
 
+char ParafilePath[64] = { 0 };
+
 void sf_sys_check_flag(void)
 {
 	// Check and limit system flag value
@@ -1283,21 +1285,14 @@ SINT32 sf_statistics_param_save(SF_PDT_PARAM_STATISTICS_S* pStatisticsParam)
 	UINT32 CheckSum = 0;
 	SINT32 lenth = 0;
 
-	char *file_path = sf_root_path_strcat(SIFAR_STATISTICS_PARAM_PATH);
-	if(file_path == NULL)
-	{
-		free(file_path);
-		return SF_FAILURE;
-	}
-		
 	lenth = sizeof(SF_PDT_PARAM_STATISTICS_S);
 	
-	fd = open(file_path, O_CREAT|O_RDWR, 0);
+	fd = open(ParafilePath, O_CREAT|O_RDWR, 0);
 	if(fd < 0) {
-		fd = open(file_path, O_CREAT|O_RDWR, 0);			/*open jpg file*/
+		fd = open(ParafilePath, O_CREAT|O_RDWR, 0);			/*open jpg file*/
 		if(fd < 0) {
 			MLOGE("errno = [%d,%s]\n",errno,strerror(errno));
-			SF_APPCOMM_CHECK_OPENFILE_RETURN(fd,file_path,SF_FAILURE);
+			SF_APPCOMM_CHECK_OPENFILE_RETURN(fd,ParafilePath,SF_FAILURE);
 		}
 	}
 
@@ -1311,8 +1306,6 @@ SINT32 sf_statistics_param_save(SF_PDT_PARAM_STATISTICS_S* pStatisticsParam)
 		MLOGE("save param failed!!!\n");
 	fsync(fd);
 	close(fd);
-
-	free(file_path);
     system("sync");
 	MLOGI("save e\n");
 	return SF_SUCCESS;
@@ -1330,17 +1323,11 @@ SINT32 sf_statistics_param_load(SF_PDT_PARAM_STATISTICS_S* pStatisticsParam)
 	static SINT32 loadFalg = 0;
 	SF_PDT_PARAM_CFG_S *pSfCustomerPara = sf_customer_param_get();
 
-	char *file_path = sf_root_path_strcat(SIFAR_STATISTICS_PARAM_PATH);
-	if(file_path == NULL)
-	{
-		free(file_path);
-		return SF_FAILURE;
-	}
-
 	if(loadFalg)
 		return SF_SUCCESS;
 
 	loadFalg = 1;
+    snprintf(ParafilePath, sizeof(ParafilePath), "%s%s", SF_EMMC_ROOT, SIFAR_STATISTICS_PARAM_PATH);
 	lenth = sizeof(SF_PDT_PARAM_STATISTICS_S);
 	memset(pStatisticsParam ,0,lenth);
 	if(pSfCustomerPara->FirstUpdateFlag == SF_TRUE)
@@ -1352,21 +1339,17 @@ SINT32 sf_statistics_param_load(SF_PDT_PARAM_STATISTICS_S* pStatisticsParam)
 		MLOGI("FirstUpdateFlag = [%d],First start!!!,reset all param \n",pSfCustomerPara->FirstUpdateFlag);
 		return SF_SUCCESS;
 	}
-	if(access((char*)file_path, F_OK) == 0)
+	if(access((char*)ParafilePath, F_OK) == 0)
 	{
-		fd = open(file_path, O_RDWR);
+		fd = open(ParafilePath, O_RDWR);
 		if(fd < 0) {
-
-			//SF_MESSAGE_BUF_S stMessageBuf = {0};
-			//stMessageBuf.cmdId = 0x0113;
-			//stMessageBuf.arg1 = 0;
-			//sf_com_message_send_to_cardv(&stMessageBuf);
-			//usleep(500000);
-			fd = open(file_path, O_RDWR);			/*open jpg file*/
-			if(fd < 0) {
-				MLOGE("errno = [%d,%s]\n",errno,strerror(errno));
-				SF_APPCOMM_CHECK_OPENFILE_RETURN(fd,file_path,SF_FAILURE);
-			}
+            memset(ParafilePath ,'\0',sizeof(ParafilePath));
+            snprintf(ParafilePath, sizeof(ParafilePath), "%s%s", SF_SD_ROOT, SIFAR_STATISTICS_PARAM_PATH);
+            fd = open(ParafilePath, O_RDWR);			/*open jpg file*/
+            if(fd < 0) {
+                MLOGE("errno = [%d,%s]\n",errno,strerror(errno));
+                SF_APPCOMM_CHECK_OPENFILE_RETURN(fd,ParafilePath,SF_FAILURE);
+            }
 		}
 	
 		read(fd, pStatisticsParam, lenth);
@@ -1391,19 +1374,16 @@ SINT32 sf_statistics_param_load(SF_PDT_PARAM_STATISTICS_S* pStatisticsParam)
 	}
 	else
 	{
-		fd = open(file_path, O_CREAT|O_RDWR, 0);
+		fd = open(ParafilePath, O_CREAT|O_RDWR, 0);
 		if(fd < 0) {
-			//SF_MESSAGE_BUF_S stMessageBuf = {0};
-			//stMessageBuf.cmdId = 0x0113;
-			///stMessageBuf.arg1 = 0;
-			//sf_com_message_send_to_cardv(&stMessageBuf);
-			//usleep(500000);
-			fd = open(file_path, O_CREAT|O_RDWR, 0);			/*open jpg file*/
-			if(fd < 0) {
-				MLOGE("errno = [%d,%s]\n",errno,strerror(errno));
-				SF_APPCOMM_CHECK_OPENFILE_RETURN(fd,file_path,SF_FAILURE);
-			}
-		}
+            memset(ParafilePath ,'\0',sizeof(ParafilePath));
+            snprintf(ParafilePath, sizeof(ParafilePath), "%s%s", SF_SD_ROOT, SIFAR_STATISTICS_PARAM_PATH);
+            fd = open(ParafilePath, O_CREAT|O_RDWR);
+            if(fd < 0) {
+                MLOGE("errno = [%d,%s]\n",errno,strerror(errno));
+                SF_APPCOMM_CHECK_OPENFILE_RETURN(fd,ParafilePath,SF_FAILURE);
+            }
+        }
 		
 		sf_statistics_param_reset(pStatisticsParam);
 		for(i=0; i<(lenth - 4); i++)
@@ -1422,7 +1402,6 @@ SINT32 sf_statistics_param_load(SF_PDT_PARAM_STATISTICS_S* pStatisticsParam)
 	MLOGD("SendPicDayCnt::%d\n", pStatisticsParam->SendPicDayCnt);
 	//if(strlen(pStatisticsParam->WebIP) < 1)
 	//	sf_statistics_param_specify(pStatisticsParam);
-	free(file_path);
     return SF_SUCCESS;
 }
 void sf_all_param_reset(void)