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 c364e7940..274165054 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
@@ -2490,7 +2490,9 @@ SINT32 sf_power_off_check_sd(void)
 {
     UIMenuStoreInfo *puiPara = sf_app_ui_para_get();
 	SF_STORE_ATTR_S storeattrs = {0};
+    MMC_DEV_TYPE mmc_dev = MMC_DEV_NO;
 
+    mmc_dev = sf_get_strg_dev();
 	/********************  SD cycle  *************************/
     if((0 == sf_check_sd()) || (sf_get_mode_flag() == 1))
     {
@@ -2526,6 +2528,10 @@ SINT32 sf_power_off_check_sd(void)
                 puiPara->SdFailCount++;
                 sf_sleep_ms(100);
             }
+            if(mmc_dev == MMC_DEV_EMMC)
+            {
+                printf("eMMC is FULL!\n");
+            }
         }
         else
         {
diff --git a/code/application/source/sf_app/code/source/app/sf_common.c b/code/application/source/sf_app/code/source/app/sf_common.c
index e9d91bad8..b0ceaae2d 100755
--- a/code/application/source/sf_app/code/source/app/sf_common.c
+++ b/code/application/source/sf_app/code/source/app/sf_common.c
@@ -634,6 +634,10 @@ static SINT32 sfStrgDevOnActionMount(int dev_id, int result)
 			{
 				sf_app_mcu_updata_start();
 			}
+            if(dev_id == MMC_DEV_EMMC)
+            {
+                printf("EMMC has Mounted!\r\n");
+            }
 			break;
 		case FST_STA_DISK_UNFORMAT:
 			sf_statistics_param_load(sf_statistics_param_get());
@@ -646,6 +650,10 @@ static SINT32 sfStrgDevOnActionMount(int dev_id, int result)
 		case FST_STA_CARD_ERR:
 			sf_sys_status_led_set(SF_LED_SYS_STATE_SD_ERROR);
 			MLOGI("^Rcard-%d mount FAIL: Card Error\r\n", dev_id + 1);
+            if(dev_id == MMC_DEV_EMMC)
+            {
+                printf("Mount eMMC Fail!\r\n");
+            }
 			break;
 		default:
 			MLOGI("^Rcard-%d mount FAIL: ErrID=%d\r\n", dev_id + 1, status);
@@ -688,6 +696,7 @@ static SINT32 sfStrgDevEmmcHandler(int cb_evt, int dev_id, int result)
 	{
 		case CMD_SD_STRG_CB_UNKNOWN:
             sf_set_card_full(1);
+            printf("eMMC is FULL!\r\n");
             break;
 		
         case CMD_SD_STRG_CB_MOUNT_FINISH:
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 0604af114..0768909ee 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
@@ -91,15 +91,17 @@ SINT32 app_ttyusb_IsOpen(void) {
 
     UINT8 i = 0;
 
-    for (i = 0; i < 40; i++) {
+    for (i = 0; i < 150; i++) {
         if (access("/dev/ttyUSB2", F_OK) == SF_SUCCESS) {
             printf("tty usb ko exist!\r\n");
+            printf("4G Init OK\r\n");
             break;
         } else {
             usleep(100 * 1000);
-            if(39 == i)
+            if(149 == i)
             {
                 MLOGE("NO ttyUSB dev!!\n");
+                printf("4G Init ERR\r\n");
             }
         }
     }
@@ -119,6 +121,7 @@ SINT32 app_ttyusb_IsOpen(void) {
         {
             MLOGE("-------ttyUSB retry init fail!\n");
             s32ret = SF_TTY_ERROR_OPEN;
+            printf("4G Init Fail, retry\r\n");
             break;
         }
     }
diff --git a/code/application/source/sf_app/code/source/wifi/sf_wifi_svr.c b/code/application/source/sf_app/code/source/wifi/sf_wifi_svr.c
index 6929ac9b4..87b5d472b 100755
--- a/code/application/source/sf_app/code/source/wifi/sf_wifi_svr.c
+++ b/code/application/source/sf_app/code/source/wifi/sf_wifi_svr.c
@@ -2781,6 +2781,14 @@ void sf_wifi_hw_init(void)
         }
 
 	    ret = system("ifconfig wlan0 192.168.1.1 netmask 255.255.255.0 up");
+        if(ret == 0)
+        {
+            printf("Wifi Init OK\r\n");
+        }
+        else
+        {
+            printf("Wifi Init ERR\r\n");
+        }
 	    //ret = system("hostapd -ddd /appfs/etc/hostapd/hostapd-8189.conf &");
 	    //ret = system("udhcpd /appfs/etc/udhcpd-8189.conf");
         //FILE *fp;