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 542d853e4..d733571ca 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
@@ -2230,7 +2230,7 @@ SINT32 sf_power_off_check_sms(void)
     SLOGD(" s %d %d\n",sf_get_sim_insert(), sf_app_while_flag());
 
     	/*instant, hybrid mode*/
-	if((!sf_get_signal_ready_flag()) && (sf_get_sim_insert()) && (sf_app_while_flag()))
+	if((!sf_get_signal_ready_flag()) && (sf_get_sim_insert()) && (sf_app_while_flag()) && (puiPara->GprsSwitch))
 	{
 		if(puiPara->GprsMode)
 		{