diff --git a/APP_Framework/Framework/connection/adapter_agent.c b/APP_Framework/Framework/connection/adapter_agent.c
index 4e2702d15..421fcb1fb 100755
--- a/APP_Framework/Framework/connection/adapter_agent.c
+++ b/APP_Framework/Framework/connection/adapter_agent.c
@@ -232,7 +232,7 @@ int AtCmdConfigAndCheck(ATAgentType agent, char *cmd, char *check)
 #endif
     if (!strstr(result, check))
     {
-        printf("%s %d check[%s] reply[%s] failed.\n", __func__, __LINE__, check, result);
+        printf("%s %d cmd[%s] check[%s] reply[%s] failed.\n", __func__, __LINE__, cmd, check, result);
         ret = -1;
         goto __exit;
     }
diff --git a/Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/board.c b/Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/board.c
index 76bf4c672..bf1eeb2c2 100644
--- a/Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/board.c
+++ b/Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/board.c
@@ -215,7 +215,8 @@ void InitBoardHardware() {
 #ifdef BSP_USING_UART
     InitHwUart();
     InstallConsole("uart1", SERIAL_DRV_NAME_1, SERIAL_1_DEVICE_NAME_0);
-    KPrintf("console init completed.\n");
+    KPrintf("\nconsole init completed.\n");
+    KPrintf("compiled on: %s at %s\n", __DATE__, __TIME__);
 #endif
 
     readRomConfiguration();  // 读取配置信息到外部变量CFG中
diff --git a/Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/third_party_driver/lte/connect_lte.c b/Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/third_party_driver/lte/connect_lte.c
index 43aa0822a..d158dda6f 100644
--- a/Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/third_party_driver/lte/connect_lte.c
+++ b/Ubiquitous/XiZi_IIoT/board/ch32v208rbt6/third_party_driver/lte/connect_lte.c
@@ -315,12 +315,19 @@ int InitHwLte(void) {
     USART_Cmd(USART2, ENABLE);
 
     /* Enable module pin */
+    GPIO_InitStructure_Lte.GPIO_Pin = GPIO_Pin_7;
+    GPIO_InitStructure_Lte.GPIO_Speed = GPIO_Speed_50MHz;
+    GPIO_InitStructure_Lte.GPIO_Mode = GPIO_Mode_Out_PP;
+    GPIO_Init(GPIOA, &GPIO_InitStructure_Lte);
+    GPIO_SetBits(GPIOA, GPIO_Pin_7);
+    Delay_Ms(500);    // >= 300ms
+    GPIO_ResetBits(GPIOA, GPIO_Pin_7);
     GPIO_InitStructure_Lte.GPIO_Pin = GPIO_Pin_6;
     GPIO_InitStructure_Lte.GPIO_Speed = GPIO_Speed_50MHz;
     GPIO_InitStructure_Lte.GPIO_Mode = GPIO_Mode_Out_PP;
     GPIO_Init(GPIOA, &GPIO_InitStructure_Lte);
     GPIO_SetBits(GPIOA, GPIO_Pin_6);
-    Delay_Ms(2000);
+    Delay_Ms(1000);    // >= 500ms
     GPIO_ResetBits(GPIOA, GPIO_Pin_6);
 
     return ret;
diff --git a/Ubiquitous/XiZi_IIoT/tool/bootloader/ota/ota.c b/Ubiquitous/XiZi_IIoT/tool/bootloader/ota/ota.c
index f69ddea61..d819c1351 100644
--- a/Ubiquitous/XiZi_IIoT/tool/bootloader/ota/ota.c
+++ b/Ubiquitous/XiZi_IIoT/tool/bootloader/ota/ota.c
@@ -993,9 +993,6 @@ reconnect:
                         mcuboot.op_reset();
                     }
 #endif
-
-                    KPrintf("------Start the firmware file transfer!------\r\n");
-                    KPrintf("---------------------------------------------\r\n");
                     if(platform_ota.size > APP_FLASH_SIZE)
                     {
                         KPrintf("File size is larger than partition size,the partition size is %dk.\n",APP_FLASH_SIZE/1024);
@@ -1006,6 +1003,7 @@ reconnect:
                         UpdateOTAFlag(p_ota_info);
                         break;
                     }
+                    KPrintf("Start erase download partition\n");
                     if(mcuboot.op_flash_erase(DOWN_FLAH_ADDRESS,platform_ota.size) != kStatus_Success)
                     {
                         KPrintf("Failed to erase download partition!\n");
@@ -1016,6 +1014,8 @@ reconnect:
                         UpdateOTAFlag(p_ota_info);
                         break;
                     }
+                    KPrintf("------Start the firmware file transfer!------\r\n");
+                    KPrintf("---------------------------------------------\r\n");
                     platform_ota.counter = (platform_ota.size%FRAME_LEN != 0)? (platform_ota.size/FRAME_LEN + 1):(platform_ota.size/FRAME_LEN);
                     platform_ota.num = 1;                                          //下载次数,初始值为1
                     platform_ota.downlen = FRAME_LEN;                              //记录本次下载量