diff --git a/code/application/source/sf_app/code/source/app/sf_service.c b/code/application/source/sf_app/code/source/app/sf_service.c
index ef867e46b..2ac9744e5 100755
--- a/code/application/source/sf_app/code/source/app/sf_service.c
+++ b/code/application/source/sf_app/code/source/app/sf_service.c
@@ -2441,12 +2441,20 @@ static int sf_is_sdc_mounted(void)
 int sf_check_sd(void)
 {
     UINT8 i = 0;
-    int ret = SF_SUCCESS;
+    static int ret = SF_SUCCESS;
     int cnt = 0;
+    static int flag = 0;
+    if((flag) && (sf_get_mode_flag() == 0))
+    {
+        MLOGI("SD Status:%d\r\n", ret);
+        return ret;
+    }
     if(0 == sf_in_card_exist() && (0 == sf_in_emmc_exist()))
     {
         NET_SLOGE("NO SD\r\n");
-        return SF_FAILURE;
+        flag = 1;
+        ret = SF_FAILURE;
+        return ret;
     }
     if (sf_sd_status_get() != SF_SD_OK) {
         ret = SF_FAILURE;
@@ -2476,8 +2484,10 @@ int sf_check_sd(void)
                 
             }
         }
+        flag = 1;
         return ret;
     }
+    flag = 1;
     return ret;
 }
 /*************************************************