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 f118a83a0..14340c068 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
@@ -1640,9 +1640,21 @@ void* sf_app_mcu_updata_thread(void *arg)
     MLOGI("MCU_UPGRADE\n");
     UINT32 McuFsize = 0;
     SINT8 ret = 0;
+    int sdflag = 0;
+    int emmcflag = 0;
+    char file_path[64] = {0};
+    if((access("/mnt/sd/Mupgrade.bin", F_OK) == 0))
+    {
+        sdflag = 1;
+        snprintf(file_path, sizeof(file_path), "/mnt/sd/Mupgrade.bin");
 
-	char *file_path = sf_root_path_strcat(UPGRADE_FIRMWARE_NANE);
-	if(file_path == NULL)
+    }
+    if((access("/mnt/sd2/Mupgrade.bin", F_OK) == 0))
+    {
+        emmcflag = 1;
+        snprintf(file_path, sizeof(file_path), "/mnt/sd2/Mupgrade.bin");
+    }
+	if(emmcflag == 0 && sdflag == 0)
 	{
         MLOGI(" sf_power_off_msg_to_cardv\n");
         MLOGE("MCU_UPGRADE no file\n");
@@ -1651,8 +1663,7 @@ void* sf_app_mcu_updata_thread(void *arg)
 		return NULL;
 	}
     ret = Fw_GetFirmwareSize(file_path, &McuFsize);
-    if((sf_in_card_exist() == SF_TRUE) && (access(file_path, F_OK) == 0)
-    && (ret == 0) && (McuFsize > 1024) && (sf_is_enough_power_to_update() == SF_TRUE))
+    if((ret == 0) && (McuFsize > 1024) && (sf_is_enough_power_to_update() == SF_TRUE))
     {
         sf_set_mcu_update_flag(SF_TRUE);
         Fw_UpgradeThreadStart();
diff --git a/code/application/source/sf_app/code/source/systemMng/sf_mcu_upgrade.c b/code/application/source/sf_app/code/source/systemMng/sf_mcu_upgrade.c
index 2034c0c53..743329c4a 100755
--- a/code/application/source/sf_app/code/source/systemMng/sf_mcu_upgrade.c
+++ b/code/application/source/sf_app/code/source/systemMng/sf_mcu_upgrade.c
@@ -28,6 +28,7 @@
 #include <sys/stat.h>
 
 #include "sf_common.h"
+#include "sf_log.h"
 #include "sf_mcu_upgrade.h"
 #include "sf_param_common.h"
 #include "sf_ledmng.h"
@@ -340,11 +341,21 @@ static void * FwUpgradeTask(void * argv)
 	SINT8 param[1] = {0};
 	param[0] = 0;
 
-	char *file_path = sf_root_path_strcat(UPGRADE_FIRMWARE_NANE);
-	if(file_path == NULL)
+	//char *file_path = sf_root_path_strcat(UPGRADE_FIRMWARE_NANE);
+    char file_path[64] = {0};
+    memset(file_path, '\0', sizeof(file_path));
+    if((access("/mnt/sd/Mupgrade.bin", F_OK) == 0))
+    {
+        snprintf(file_path, sizeof(file_path), "/mnt/sd/Mupgrade.bin");
+    }
+    if((access("/mnt/sd2/Mupgrade.bin", F_OK) == 0))
+    {
+        snprintf(file_path, sizeof(file_path), "/mnt/sd2/Mupgrade.bin");
+    }
+	if(file_path[0] == '\0')
 	{
-		free(file_path);
-		return;
+        MLOGE("no update file\n");
+		return NULL;
 	}
 
 	while(FwUpgradeExit == 0)