diff --git a/APP_Framework/Framework/connection/4g/ec200t/ec200t.c b/APP_Framework/Framework/connection/4g/ec200t/ec200t.c
index 92f687303..c916f36f1 100644
--- a/APP_Framework/Framework/connection/4g/ec200t/ec200t.c
+++ b/APP_Framework/Framework/connection/4g/ec200t/ec200t.c
@@ -167,7 +167,7 @@ static int Ec200tIoctl(struct Adapter *adapter, int cmd, void *args)
     serial_cfg.serial_timeout = OTA_RX_TIMEOUT;
 #else
     //serial receive timeout 10s
-    serial_cfg.serial_timeout = 100000;
+    serial_cfg.serial_timeout = 10000;
 #endif
     serial_cfg.is_ext_uart = 0;
 #ifdef ADAPTER_EC200T_DRIVER_EXT_PORT
diff --git a/Ubiquitous/XiZi_IIoT/tool/bootloader/ota/ota.c b/Ubiquitous/XiZi_IIoT/tool/bootloader/ota/ota.c
index 236d8711d..a5105b345 100644
--- a/Ubiquitous/XiZi_IIoT/tool/bootloader/ota/ota.c
+++ b/Ubiquitous/XiZi_IIoT/tool/bootloader/ota/ota.c
@@ -852,6 +852,10 @@ reconnect:
                 {
                         KPrintf("Failed to get ota information!\n");
                         ret = -1;
+                        ota_info.status = OTA_STATUS_ERROR;
+                        memset(ota_info.error_message,0,sizeof(ota_info.error_message));
+                        strncpy(ota_info.error_message, "Failed to get ota information!",sizeof(ota_info.error_message));
+                        UpdateOTAFlag(&ota_info);
                         break;
                 }
             }
@@ -864,6 +868,10 @@ reconnect:
                 {
                     KPrintf("current frame[%d] flash failed.\n",platform_ota.num-1);
                     ret = -1;
+                    ota_info.status = OTA_STATUS_ERROR;
+                    memset(ota_info.error_message,0,sizeof(ota_info.error_message));
+                    sprintf(ota_info.error_message,"current frame[%d] flash failed.",platform_ota.num-1);  
+                    UpdateOTAFlag(&ota_info);
                     break;
                 }
                 else
@@ -938,19 +946,16 @@ reconnect:
         strncpy(ota_info.error_message, "No error message!",sizeof(ota_info.error_message));
 
         UpdateOTAFlag(&ota_info);
-    } 
+        KPrintf("ota file transfer complete,start reboot!\n");
+    }
     else
     {
-        ota_info.status = OTA_STATUS_ERROR;
-        memset(ota_info.error_message,0,sizeof(ota_info.error_message));
-        strncpy(ota_info.error_message, "Failed to download firmware to download partition!",sizeof(ota_info.error_message));
-        UpdateOTAFlag(&ota_info);
+        KPrintf("ota file transfer failed,start reboot!\n");
     }
     MQTT_UnSubscribeTopic(topicdatabuff[0]);
     MQTT_UnSubscribeTopic(topicdatabuff[1]);
     MQTT_Disconnect();
     mcuboot.flash_deinit();
-    KPrintf("ota file transfer complete,start reboot!\n");
     MdelayKTask(2000);
     mcuboot.op_reset();
 }
@@ -1074,6 +1079,10 @@ reconnect:
                 {
                         KPrintf("Failed to get ota information!\n");
                         ret = -1;
+                        ota_info.status = OTA_STATUS_ERROR;
+                        memset(ota_info.error_message,0,sizeof(ota_info.error_message));
+                        strncpy(ota_info.error_message, "Failed to get ota information!",sizeof(ota_info.error_message));
+                        UpdateOTAFlag(&ota_info);
                         break;
                 }
             }
@@ -1086,6 +1095,10 @@ reconnect:
                 {
                     KPrintf("current frame[%d] flash failed.\n",platform_ota.num-1);
                     ret = -1;
+                    ota_info.status = OTA_STATUS_ERROR;
+                    memset(ota_info.error_message,0,sizeof(ota_info.error_message));
+                    sprintf(ota_info.error_message,"current frame[%d] flash failed.",platform_ota.num-1);  
+                    UpdateOTAFlag(&ota_info);
                     break;
                 }
                 else
@@ -1160,18 +1173,15 @@ reconnect:
         strncpy(ota_info.error_message, "No error message!",sizeof(ota_info.error_message));
 
         UpdateOTAFlag(&ota_info);
-    } 
+        KPrintf("ota file transfer complete,start reboot!\n");
+    }
     else
     {
-        ota_info.status = OTA_STATUS_ERROR;
-        memset(ota_info.error_message,0,sizeof(ota_info.error_message));
-        strncpy(ota_info.error_message, "Failed to download firmware to download partition!",sizeof(ota_info.error_message));
-        UpdateOTAFlag(&ota_info);
+        KPrintf("ota file transfer failed,start reboot!\n");
     }
     MQTT_UnSubscribeTopic(topicdatabuff);
     MQTT_Disconnect();
     mcuboot.flash_deinit();
-    KPrintf("ota file transfer complete,start reboot!\n");
     MdelayKTask(2000);
     mcuboot.op_reset();
 }