diff --git a/components/bt/bluedroid/bta/dm/bta_dm_act.c b/components/bt/bluedroid/bta/dm/bta_dm_act.c
index ca673df09..e7b141f1a 100755
--- a/components/bt/bluedroid/bta/dm/bta_dm_act.c
+++ b/components/bt/bluedroid/bta/dm/bta_dm_act.c
@@ -4800,6 +4800,27 @@ void bta_dm_ble_set_rand_address(tBTA_DM_MSG *p_data)
 	
 }
 
+/*******************************************************************************
+**
+** Function         bta_dm_ble_stop_advertising
+**
+** Description      This function stop the BLE avdertising for the device.
+**
+** Parameters:		void
+** Explanation:		This function added by Yulong at 2016/10/19 
+*******************************************************************************/
+void bta_dm_ble_stop_advertising(tBTA_DM_MSG *p_data)
+{
+	if(p_data->hdr.event != BTA_DM_API_BLE_STOP_ADV_EVT)
+	{
+		APPL_TRACE_ERROR("Invalid BTA event,cann't stop the BLE adverting\n");
+	}
+	
+	btm_ble_stop_adv();
+}
+
+
+
 #if BLE_PRIVACY_SPT == TRUE
 /*******************************************************************************
 **
@@ -4927,7 +4948,7 @@ void bta_dm_ble_set_data_length(tBTA_DM_MSG *p_data)
     if (BTM_SetBleDataLength(p_data->ble_set_data_length.remote_bda,
                         p_data->ble_set_data_length.tx_data_length) != BTM_SUCCESS)
     {
-        APPL_TRACE_ERROR("%s failed", __FUNCTION__);
+        APPL_TRACE_ERROR("%s failed\n", __FUNCTION__);
     }
 }
 
diff --git a/components/bt/bluedroid/bta/dm/bta_dm_api.c b/components/bt/bluedroid/bta/dm/bta_dm_api.c
index 5dd94b6ac..9579843c5 100755
--- a/components/bt/bluedroid/bta/dm/bta_dm_api.c
+++ b/components/bt/bluedroid/bta/dm/bta_dm_api.c
@@ -2089,6 +2089,32 @@ extern void BTA_DmBleObserve(BOOLEAN start, UINT8 duration,
     }
 }
 
+/*******************************************************************************
+**
+** Function         BTA_DmBleStopAdvertising
+**
+** Description      This function set the random address for the APP
+**
+** Parameters       void
+** 
+** Returns          void
+**
+**
+*******************************************************************************/
+extern void BTA_DmBleStopAdvertising(void)
+{
+	BT_HDR   *p_msg;
+
+    APPL_TRACE_API("BTA_DmBleStopAdvertising\n");
+
+    if ((p_msg = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
+    {
+        memset(p_msg, 0, sizeof(BT_HDR));
+        p_msg->event = BTA_DM_API_BLE_STOP_ADV_EVT;
+        bta_sys_sendmsg(p_msg);
+    }
+}
+
 
 /*******************************************************************************
 **
diff --git a/components/bt/bluedroid/bta/dm/bta_dm_int.h b/components/bt/bluedroid/bta/dm/bta_dm_int.h
index 7b407440f..08cbb907d 100755
--- a/components/bt/bluedroid/bta/dm/bta_dm_int.h
+++ b/components/bt/bluedroid/bta/dm/bta_dm_int.h
@@ -95,6 +95,9 @@ enum
     /*******This event added by Yulong at 2016/9/9 to 
     support the random address setting for the APP******/
     BTA_DM_API_SET_RAND_ADDR_EVT,
+    /*******This event added by Yulong at 2016/10/19 to 
+    support stop the ble advertising setting by the APP******/
+    BTA_DM_API_BLE_STOP_ADV_EVT,
 #if BLE_PRIVACY_SPT == TRUE
     BTA_DM_API_LOCAL_PRIVACY_EVT,
 #endif
@@ -1128,6 +1131,7 @@ extern void bta_dm_close_gatt_conn(tBTA_DM_MSG *p_data);
 extern void bta_dm_ble_observe (tBTA_DM_MSG *p_data);
 extern void bta_dm_ble_update_conn_params (tBTA_DM_MSG *p_data);
 extern void bta_dm_ble_set_rand_address(tBTA_DM_MSG *p_data);
+extern void bta_dm_ble_stop_advertising(tBTA_DM_MSG *p_data);
 extern void bta_dm_ble_config_local_privacy (tBTA_DM_MSG *p_data);
 extern void bta_dm_ble_set_adv_params (tBTA_DM_MSG *p_data);
 extern void bta_dm_ble_set_adv_config (tBTA_DM_MSG *p_data);
diff --git a/components/bt/bluedroid/bta/dm/bta_dm_main.c b/components/bt/bluedroid/bta/dm/bta_dm_main.c
index 40f8e0b21..ef4033134 100755
--- a/components/bt/bluedroid/bta/dm/bta_dm_main.c
+++ b/components/bt/bluedroid/bta/dm/bta_dm_main.c
@@ -92,6 +92,9 @@ const tBTA_DM_ACTION bta_dm_action[BTA_DM_MAX_EVT] =
     /*******This handler function added by Yulong at 2016/9/9 to 
     		support the random address setting for the APP******/
     bta_dm_ble_set_rand_address,	/*BTA_DM_API_SET_RAND_ADDR_EVT*/
+     /*******This handler function added by Yulong at 2016/10/19 to 
+    		support stop the ble advertising setting by the APP******/
+    bta_dm_ble_stop_advertising,	/*BTA_DM_API_BLE_STOP_ADV_EVT*/
 #if BLE_PRIVACY_SPT == TRUE
     bta_dm_ble_config_local_privacy,   /* BTA_DM_API_LOCAL_PRIVACY_EVT */
 #endif
diff --git a/components/bt/bluedroid/bta/include/bta_api.h b/components/bt/bluedroid/bta/include/bta_api.h
index 4776d5954..8a5b11ad5 100755
--- a/components/bt/bluedroid/bta/include/bta_api.h
+++ b/components/bt/bluedroid/bta/include/bta_api.h
@@ -2023,6 +2023,8 @@ extern void BTA_DmSetEncryption(BD_ADDR bd_addr, tBTA_TRANSPORT transport,
 extern void BTA_DmBleObserve(BOOLEAN start, UINT8 duration,
                              tBTA_DM_SEARCH_CBACK *p_results_cb);
 
+extern void BTA_DmBleStopAdvertising(void);
+
 extern void BTA_DmSetRandAddress(BD_ADDR rand_addr);
 
 #endif
diff --git a/components/bt/bluedroid/stack/btm/btm_ble.c b/components/bt/bluedroid/stack/btm/btm_ble.c
index 974bbfbfa..f12b960c0 100755
--- a/components/bt/bluedroid/stack/btm/btm_ble.c
+++ b/components/bt/bluedroid/stack/btm/btm_ble.c
@@ -453,7 +453,7 @@ void BTM_BleConfirmReply (BD_ADDR bd_addr, UINT8 res)
     }
 
     p_dev_rec->sec_flags   |= BTM_SEC_LE_AUTHENTICATED;
-    BTM_TRACE_DEBUG ("%s", __func__);
+    BTM_TRACE_DEBUG ("%s\n", __func__);
     SMP_ConfirmReply(bd_addr, res_smp);
 }
 
diff --git a/components/bt/bluedroid/stack/btm/btm_ble_gap.c b/components/bt/bluedroid/stack/btm/btm_ble_gap.c
index a12e074ba..540baf571 100755
--- a/components/bt/bluedroid/stack/btm/btm_ble_gap.c
+++ b/components/bt/bluedroid/stack/btm/btm_ble_gap.c
@@ -659,7 +659,7 @@ BOOLEAN BTM_BleConfigPrivacy(BOOLEAN privacy_mode)
 #if BLE_PRIVACY_SPT == TRUE
     tBTM_BLE_CB  *p_cb = &btm_cb.ble_ctr_cb;
 
-    BTM_TRACE_EVENT ("%s", __func__);
+    BTM_TRACE_EVENT ("%s\n", __func__);
 
     /* if LE is not supported, return error */
     if (!controller_get_interface()->supports_ble())
@@ -1333,7 +1333,7 @@ UINT8 *BTM_CheckAdvData( UINT8 *p_adv, UINT8 type, UINT8 *p_length)
 *******************************************************************************/
 UINT16 BTM_BleReadDiscoverability()
 {
-    BTM_TRACE_API("%s", __FUNCTION__);
+    BTM_TRACE_API("%s\n", __FUNCTION__);
 
     return (btm_cb.ble_ctr_cb.inq_var.discoverable_mode);
 }
@@ -1350,7 +1350,7 @@ UINT16 BTM_BleReadDiscoverability()
 *******************************************************************************/
 UINT16 BTM_BleReadConnectability()
 {
-    BTM_TRACE_API ("%s", __FUNCTION__);
+    BTM_TRACE_API ("%s\n", __FUNCTION__);
 
     return (btm_cb.ble_ctr_cb.inq_var.connectable_mode);
 }
@@ -1782,7 +1782,7 @@ tBTM_STATUS btm_ble_set_discoverability(UINT16 combined_mode)
                         own_addr_type = p_addr_cb->own_addr_type;
     UINT16              adv_int_min, adv_int_max;
 
-    BTM_TRACE_EVENT ("%s mode=0x%0x combined_mode=0x%x", __FUNCTION__, mode, combined_mode);
+    BTM_TRACE_EVENT ("%s mode=0x%0x combined_mode=0x%x\n", __FUNCTION__, mode, combined_mode);
 
     /*** Check mode parameter ***/
     if (mode > BTM_BLE_MAX_DISCOVERABLE)
@@ -1800,7 +1800,7 @@ tBTM_STATUS btm_ble_set_discoverability(UINT16 combined_mode)
     btu_stop_timer(&p_cb->fast_adv_timer);
 
     /* update adv params if start advertising */
-    BTM_TRACE_EVENT ("evt_type=0x%x p-cb->evt_type=0x%x ", evt_type, p_cb->evt_type);
+    BTM_TRACE_EVENT ("evt_type=0x%x p-cb->evt_type=0x%x\n ", evt_type, p_cb->evt_type);
 
     if (new_mode == BTM_BLE_ADV_ENABLE)
     {
diff --git a/components/bt/bluedroid/stack/btm/btm_sec.c b/components/bt/bluedroid/stack/btm/btm_sec.c
index 4ba8f2847..bf16e0fb3 100755
--- a/components/bt/bluedroid/stack/btm/btm_sec.c
+++ b/components/bt/bluedroid/stack/btm/btm_sec.c
@@ -447,7 +447,7 @@ void BTM_SetPairableMode (BOOLEAN allow_pairing, BOOLEAN connect_only_paired)
 *******************************************************************************/
 void BTM_SetSecureConnectionsOnly (BOOLEAN secure_connections_only_mode)
 {
-    BTM_TRACE_API("%s: Mode : %u", __FUNCTION__,
+    BTM_TRACE_API("%s: Mode : %u\n", __FUNCTION__,
                    secure_connections_only_mode);
 
     btm_cb.devcb.secure_connections_only = secure_connections_only_mode;
diff --git a/components/bt/bluedroid/stack/gatt/gatt_sr.c b/components/bt/bluedroid/stack/gatt/gatt_sr.c
index 7e6417bab..a48d8896f 100755
--- a/components/bt/bluedroid/stack/gatt/gatt_sr.c
+++ b/components/bt/bluedroid/stack/gatt/gatt_sr.c
@@ -919,7 +919,7 @@ static void gatts_process_mtu_req (tGATT_TCB *p_tcb, UINT16 len, UINT8 *p_data)
     }
     else if (len < GATT_MTU_REQ_MIN_LEN)
     {
-        GATT_TRACE_ERROR("invalid MTU request PDU received.");
+        GATT_TRACE_ERROR("invalid MTU request PDU received.\n");
         gatt_send_error_rsp (p_tcb, GATT_INVALID_PDU, GATT_REQ_MTU, 0, FALSE);
     }
     else
@@ -933,7 +933,7 @@ static void gatts_process_mtu_req (tGATT_TCB *p_tcb, UINT16 len, UINT8 *p_data)
         else
             p_tcb->payload_size = mtu;
 
-        GATT_TRACE_ERROR("MTU request PDU with MTU size %d", p_tcb->payload_size);
+        GATT_TRACE_ERROR("MTU request PDU with MTU size %d\n", p_tcb->payload_size);
 
         l2cble_set_fixed_channel_tx_data_length(p_tcb->peer_bda, L2CAP_ATT_CID, p_tcb->payload_size);
 
diff --git a/components/bt/bluedroid/stack/smp/smp_l2c.c b/components/bt/bluedroid/stack/smp/smp_l2c.c
index 0aa5ee095..8988983bd 100755
--- a/components/bt/bluedroid/stack/smp/smp_l2c.c
+++ b/components/bt/bluedroid/stack/smp/smp_l2c.c
@@ -296,7 +296,7 @@ static void smp_br_data_received(UINT16 channel, BD_ADDR bd_addr, BT_HDR *p_buf)
     tSMP_CB *p_cb = &smp_cb;
     UINT8   *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
     UINT8   cmd ;
-    SMP_TRACE_EVENT ("SMDBG l2c %s", __func__);
+    SMP_TRACE_EVENT ("SMDBG l2c %s\n", __func__);
 
     STREAM_TO_UINT8(cmd, p);