diff --git a/code/application/source/sf_app/code/source/4gMng/sf_sms.c b/code/application/source/sf_app/code/source/4gMng/sf_sms.c
index 7212a155c..fa0a0f05a 100755
--- a/code/application/source/sf_app/code/source/4gMng/sf_sms.c
+++ b/code/application/source/sf_app/code/source/4gMng/sf_sms.c
@@ -2420,7 +2420,7 @@ SINT32 sf_power_off_check_sd(void)
 	SF_STORE_ATTR_S storeattrs = {0};
 
 	/********************  SD cycle  *************************/
-    if((sf_in_card_exist() && (sf_is_card())) || (sf_get_mode_flag() == 1))
+    if((0 == sf_check_sd()) || (sf_get_mode_flag() == 1))
     {
         //sf_ErrorLogCopyToCard();
         //sf_FlowLogCopyToCard();