diff --git a/.vscode/settings.json b/.vscode/settings.json
index 8fb96ba..13695b9 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -78,6 +78,7 @@
         "stddef.h": "c",
         "netdev_ipaddr.h": "c",
         "stdint.h": "c",
-        "stdarg.h": "c"
+        "stdarg.h": "c",
+        "math.h": "c"
     }
 }
diff --git a/applications/main.c b/applications/main.c
index 6a7a9df..80924b6 100644
--- a/applications/main.c
+++ b/applications/main.c
@@ -2,7 +2,7 @@
  * @Author: mbw
  * @Date: 2024-10-23 17:14:16
  * @LastEditors: mbw && 1600520629@qq.com
- * @LastEditTime: 2025-06-05 09:58:33
+ * @LastEditTime: 2025-06-06 08:48:12
  * @FilePath: \ble_bjq_ch303rct6_ml307\applications\main.c
  * @Descrt_thread_
  *
@@ -302,7 +302,7 @@ int main(void)
         LOG_D("工作时长：%d", work_duration);
         // 读取历史记录总数
         g_Calibration_status = Flash_Get_Calibration_State();
-        rt_thread_mdelay(10);
+        rt_thread_mdelay(100);
     }
     else
     {
diff --git a/bsp/src/at_device_ml307.c b/bsp/src/at_device_ml307.c
index e05e648..c0ce568 100644
--- a/bsp/src/at_device_ml307.c
+++ b/bsp/src/at_device_ml307.c
@@ -952,6 +952,11 @@ static void ml307_init_thread_entry(void *parameter)
             result = -RT_ERROR;
             goto __exit;
         }
+        if (at_obj_exec_cmd(device->client, resp, "AT+CEREG=1") != RT_EOK)
+        {
+            result = -RT_ERROR;
+            goto __exit;
+        }
         /* Define PDP Context */
         for (i = 0; i < COMMON_RETRY; i++)
         {
diff --git a/bsp/src/bsp_ml307.c b/bsp/src/bsp_ml307.c
index f6d110a..bb533de 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: 2025-05-29 10:03:26
+ * @LastEditTime: 2025-06-06 08:37:07
  * @FilePath: \ble_bjq_ch303rct6_ml307\bsp\src\bsp_ml307.c
  * @Description:
  *
@@ -2020,6 +2020,11 @@ static void Ml307_Life_Thread_Entry (void *parameter)
                             result = -RT_ERROR;
                             goto __exit;
                         }
+                        if (at_obj_exec_cmd(device->client, resp, "AT+CEREG=1") != RT_EOK)
+                        {
+                            result = -RT_ERROR;
+                            goto __exit;
+                        }
                         rt_uint8_t i = 0;
                         /* check SIM card */
                         for (i = 0; i < 60; i++)