diff --git a/.vscode/settings.json b/.vscode/settings.json
index 4597c38..fcfc0fd 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -69,6 +69,7 @@
         "stdio.h": "c",
         "time.h": "c",
         "ch32v30x.h": "c",
-        "lwutil.h": "c"
+        "lwutil.h": "c",
+        "netdev.h": "c"
     }
 }
diff --git a/bsp/src/at_device_ml307.c b/bsp/src/at_device_ml307.c
index 5861007..bef4256 100644
--- a/bsp/src/at_device_ml307.c
+++ b/bsp/src/at_device_ml307.c
@@ -2,7 +2,7 @@
  * @Author: mbw
  * @Date: 2024-11-30 15:46:21
  * @LastEditors: mbw && 1600520629@qq.com
- * @LastEditTime: 2025-02-21 14:49:11
+ * @LastEditTime: 2025-02-21 18:33:03
  * @FilePath: \ble_bjq_ch303rct6_ml307\bsp\src\at_device_ml307.c
  * @Description: 
  * 
@@ -884,7 +884,6 @@ static void ml307_init_thread_entry(void *parameter)
 #define CGATT_RETRY              10
 #define ML307_AT_DEFAULT_TIMEOUT 5000
     int i;
-    rt_uint8_t retry_num     = INIT_RETRY;
     rt_err_t result          = RT_EOK;
     at_response_t resp       = RT_NULL;
     struct at_device *device = (struct at_device *)parameter;
@@ -900,7 +899,7 @@ static void ml307_init_thread_entry(void *parameter)
 
     LOG_D("start init %s device.", device->name);
     ml307_power_off(device);
-    while (retry_num--)
+    while (1)
     {
         /* power on the ml307 device */
         rt_thread_mdelay(1000);
@@ -966,7 +965,6 @@ static void ml307_init_thread_entry(void *parameter)
             result = -RT_ERROR;
             goto __exit;
         }
-
         {
 #define ML307_NETDEV_HWADDR_LEN 8
 #define ML307_IMEI_LEN          15
@@ -1153,7 +1151,7 @@ static void ml307_init_thread_entry(void *parameter)
         if (result != RT_EOK)
         {
             /* power off the ml307 device */
-            // ml307_power_off(device);
+            ml307_power_off(device);
             rt_thread_mdelay(1000);
 
             LOG_I("%s device initialize retry...", device->name);
diff --git a/bsp/src/bsp_ml307.c b/bsp/src/bsp_ml307.c
index f9e7760..03ab2cb 100644
--- a/bsp/src/bsp_ml307.c
+++ b/bsp/src/bsp_ml307.c
@@ -2,7 +2,7 @@
  * @Author: mbw
  * @Date: 2024-11-30 15:46:21
  * @LastEditors: mbw && 1600520629@qq.com
- * @LastEditTime: 2025-02-21 14:47:59
+ * @LastEditTime: 2025-02-22 15:59:21
  * @FilePath: \ble_bjq_ch303rct6_ml307\bsp\src\bsp_ml307.c
  * @Description:
  *
@@ -26,7 +26,7 @@
 #if IOT_MODULE_SWITCH == 1
 #define ML307_THREAD_STACK_SIZE      (4096 + 2048)
 #define ML307_RECV_THREAD_STACK_SIZE (4096 + 2048)
-#define ML307_LIFE_THREAD_STACK_SIZE (1024)
+#define ML307_LIFE_THREAD_STACK_SIZE (4096)
 #define ML307_THREAD_PRIORITY        25
 #define ML307_THREAD_TICKS           50
 #define ML307_RECV_THREAD_PRIORITY   24
@@ -1802,61 +1802,48 @@ static void Ml307_Life_Thread_Entry(void *parameter)
                             result = -RT_ERROR;
                             goto __exit;
                         }
-                        LOG_D("AT+MIPCFG=\"encoding\",0,1,1");
+                        /*disable sleep mode */
+                        if (at_obj_exec_cmd(device->client, resp, "AT+MLPMCFG=\"sleepmode\",0,1") != RT_EOK)
+                        {
+                            result = -RT_ERROR;
+                            goto __exit;
+                        }
                         /*设置包模式*/
                         if (at_obj_exec_cmd(device->client, resp, "AT+MIPCFG=\"encoding\",0,1,1") != RT_EOK)
                         {
                             result = -RT_ERROR;
                             goto __exit;
                         }
-                        rt_uint8_t cnt = 0;
-                        /* check signal strength */
-                        for (cnt = 0; cnt < 10; cnt++)
+                        /*设置包模式*/
+                        if (at_obj_exec_cmd(device->client, resp, "AT+MIPCFG=\"autofree\",0,0") != RT_EOK)
                         {
-                            if (at_obj_exec_cmd(device->client, resp, "AT+CSQ") == RT_EOK)
-                            {
-                                int signal_strength = 0, err_rate = 0;
-
-                                if (at_resp_parse_line_args_by_kw(resp, "+CSQ:", "+CSQ: %d,%d", &signal_strength, &err_rate) > 0)
-                                {
-                                    if ((signal_strength != 99) && (signal_strength != 0))
-                                    {
-                                        break;
-                                    }
-                                }
-                            }
-                            rt_thread_mdelay(1000);
-                        }
-                        if (cnt == 10)
-                        {
-                            LOG_E("%s device signal strength check failed", device->name);
                             result = -RT_ERROR;
                             goto __exit;
                         }
-                        /* check the GPRS network is registered */
-                        for (cnt = 0; cnt < 10; cnt++)
+                        /*设置心跳包*/
+                        if (at_obj_exec_cmd(device->client, resp, "AT+MIPTKA=0,1,120,60,1") != RT_EOK)
                         {
-                            if (at_obj_exec_cmd(device->client, resp, "AT+CEREG?") == RT_EOK) // 60s内注册CS业务
-                            {
-                                int link_stat = 0;
-
-                                if (at_resp_parse_line_args_by_kw(resp, "+CEREG:", "+CEREG: %*d,%d", &link_stat) > 0)
-                                {
-                                    if ((link_stat == 1) || (link_stat == 5))
-                                    {
-                                        LOG_D("%s device GPRS is registered", device->name);
-                                        break;
-                                    }
-                                }
-                            }
-                            rt_thread_mdelay(1000);
-                        }
-                        if (cnt == 10)
-                        {
-                            LOG_E("%s device GPRS is register failed", device->name);
                             result = -RT_ERROR;
                             goto __exit;
                         }
+                         /* Define PDP Context */
+                         rt_uint8_t  i = 0,
+                        for (i = 0; i < 5; i++)
+                        {
+                            if (at_obj_exec_cmd(client, resp, "AT+CGDCONT=1,\"IPV4V6\",\"cmnet\"") == RT_EOK)
+                            {
+                                LOG_D("%s device Define PDP Context Success.", device->name);
+                                break;
+                            }
+                            rt_thread_mdelay(1000);
+                        }
+                        if (i == 5)
+                        {
+                            LOG_E("%s device Define PDP Context failed.", device->name);
+                            result = -RT_ERROR;
+                            goto __exit;
+                        }
+
                         if (device->class->device_ops->control(device, AT_DEVICE_CTRL_NET_CONN, RT_NULL) == RT_EOK)
                         {
                             LOG_D("重连网络成功\n");