diff --git a/code/application/source/sf_app/code/include/sf_device.h b/code/application/source/sf_app/code/include/sf_device.h
index 72ccc0d20..1cff97ec6 100644
--- a/code/application/source/sf_app/code/include/sf_device.h
+++ b/code/application/source/sf_app/code/include/sf_device.h
@@ -67,6 +67,7 @@ SINT32 sf_in_update(void);
 
 void sf_set_card_statu(UINT32 val);
 UINT32 sf_get_card_statu(void);
+BOOL sf_system_check_bt_ko(void);
 #ifdef __cplusplus
 #if __cplusplus
 }
diff --git a/code/application/source/sf_app/code/source/app/sf_device.c b/code/application/source/sf_app/code/source/app/sf_device.c
index 134b8e691..7794d9f30 100755
--- a/code/application/source/sf_app/code/source/app/sf_device.c
+++ b/code/application/source/sf_app/code/source/app/sf_device.c
@@ -629,11 +629,29 @@ BOOL sf_load_ko(void)
 	return ret2;
 }
 
+BOOL sf_system_check_bt_ko(void)
+{
+    char command[26] = "lsmod | grep rtk_btusb";
+    FILE *fp = popen(command, "r");
+    char result[256];
+    fgets(result, sizeof(result), fp);
+    pclose(fp);
+    if (result[0] == '\0') {
+        MLOGI("rtk_btusb module is not loaded.\n");
+        return FALSE;
+    } else {
+        MLOGI("rtk_btusb module is loaded.\n");
+        return TRUE;
+    }
+}
+
 BOOL sf_load_bt_ko(void)
 {
     BOOL ret2 = TRUE;
     int ret = 0;
-    ret = system("modprobe hci_uart");
+    MLOGI("start.\n");
+
+    ret = system("modprobe rtk_btusb");
     if(0 != ret)
     {
         ret2 = FALSE;
diff --git a/code/application/source/sf_app/code/source/sf_blue/src/sf_blue_hal.c b/code/application/source/sf_app/code/source/sf_blue/src/sf_blue_hal.c
index b5a5611d7..b9505fae9 100644
--- a/code/application/source/sf_app/code/source/sf_blue/src/sf_blue_hal.c
+++ b/code/application/source/sf_app/code/source/sf_blue/src/sf_blue_hal.c
@@ -30,6 +30,7 @@
 #include <sys/socket.h>
 #include <net/if.h>
 #include "sf_blue_app.h"
+#include "sf_device.h"
 
 extern int hciconfig_start_advertising(const char *ssid);
 extern int hciconfig_close_device(void);
@@ -131,14 +132,26 @@ static void *sf_bluetooth_piscan_task(void *arg)
     //system("export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/misc:/customer/rocus/lib");
     //system("adduser messagebus");
 
-    system("rtk_hciattach -n -s 115200 ttyS1 rtk_h5 &");
+    // system("rtk_hciattach -n -s 115200 ttyS1 rtk_h5 &");
 
 
+    // for (i = 0; i < 40; i++) {
+    //     if (access("/tmp/blue_setup_complete", F_OK) == 0) {
+    //         printf("blue setup complete\r\n");
+    //         remove("/tmp/blue_setup_complete");
+
+    //         break;
+    //     } else {
+    //         usleep(500 * 1000);
+    //         if(39 == i)
+    //         {
+    //             MLOGE("blue setup fall!!\n");
+    //             return NULL;
+    //         }
+    //     }
+    // }
     for (i = 0; i < 40; i++) {
-        if (access("/tmp/blue_setup_complete", F_OK) == 0) {
-            printf("blue setup complete\r\n");
-            remove("/tmp/blue_setup_complete");
-
+        if (sf_system_check_bt_ko() == TRUE) {
             break;
         } else {
             usleep(500 * 1000);