diff --git a/applications/drv_ec800k.c b/applications/drv_ec800k.c
index c5e5a42..a971c5a 100644
--- a/applications/drv_ec800k.c
+++ b/applications/drv_ec800k.c
@@ -294,6 +294,12 @@ int16_t BSP_LTE_GetCEREG(int16_t retry) {
     } else if (0 == BSP_LTE_SendCmd(AT_CEREG, "+CEREG: 0,5\r\n\r\nOK",
                                     DEFAULT_ERROR, LTE_CMD_WAIT_LONG)) {
       return 0;
+    } else if (0 == BSP_LTE_SendCmd(AT_CEREG, CEREG_OK_2, DEFAULT_ERROR,
+                                    LTE_CMD_WAIT_LONG)) {
+      return 0;
+    } else if (0 == BSP_LTE_SendCmd(AT_CEREG, DEFAULT_EXPECT, DEFAULT_ERROR,
+                                    LTE_CMD_WAIT_LONG)) {
+      return 0;
     }
     retry--;
   } while (retry);
@@ -372,7 +378,8 @@ void BSP_LTE_Config(void) {
   }
   /*配置应用场景*/
   BSP_LTE_SendCmd(AT_QICSGP, DEFAULT_EXPECT, DEFAULT_ERROR, LTE_CMD_WAIT_LONG);
-
+  //BSP_LTE_SendCmd(AT_QICSGP_CTIOT, DEFAULT_EXPECT, DEFAULT_ERROR, LTE_CMD_WAIT_LONG);
+  //BSP_LTE_SendCmd(AT_QICSGP_CMTDS, DEFAULT_EXPECT, DEFAULT_ERROR, LTE_CMD_WAIT_LONG);
   /*定义 PDP 上下文*/
   BSP_LTE_SendCmd("AT+CGDCONT?\r\n", DEFAULT_EXPECT, DEFAULT_ERROR,
                   LTE_CMD_WAIT_NORMAL);
diff --git a/applications/drv_ec800k.h b/applications/drv_ec800k.h
index 2a33db6..0ae2850 100644
--- a/applications/drv_ec800k.h
+++ b/applications/drv_ec800k.h
@@ -31,11 +31,13 @@ extern "C" {
 #define LTE_CMD_WAIT_LONG (3000)
 #define LTE_CMD_WAIT_LLONG (7000)
 
-#define DEFAULT_EXPECT "\r\nOK\r\n"
+//#define DEFAULT_EXPECT "\r\nOK\r\n"
+#define DEFAULT_EXPECT "OK"
 #define DEFAULT_ERROR "ERROR"
 #define DEFAULT_RDY "READY"
 #define CGATT_OK "+CGATT: 1\r\n\r\nOK"
 #define CEREG_OK "+CEREG: 0,1\r\n\r\nOK"
+#define CEREG_OK_2 "+CEREG: 0,1"
 #define CONNECTE_OK "CONNECT"
 #define CLOSED "closed"
 #define SERVER_DISCONNECTED "SERVER DISCONNECTED:0"
@@ -103,7 +105,8 @@ extern "C" {
 // #define AT_QICSGP
 // "AT+QICSGP=1,1,\"cmnbiot\",\"web\",\"password\",0\r\n"
 #define AT_QICSGP_CMNET "AT+QICSGP=1,1,\"cmnet\",\"\",\"\"\r\n"
-
+#define AT_QICSGP_CTIOT "AT+QICSGP=1,1,\"ctiot\",\"\",\"\"\r\n"
+#define AT_QICSGP_CMTDS "AT+QICSGP=1,1,\"cmtds\",\"\",\"\"\r\n"
 /*韩国APN*/
 #define AT_QICSGP_SK "AT+QICSGP=1,1,\"lte.sktelecom.com \",\"\",\"\"\r\n"