diff --git a/app/drivers/sertrf/device.c b/app/drivers/sertrf/device.c
index 1f6f144..60e4e7b 100644
--- a/app/drivers/sertrf/device.c
+++ b/app/drivers/sertrf/device.c
@@ -91,6 +91,7 @@ static void ble_server_connect_handler(ble_server_status_t status)
             if(res == DEVICE_PC_ERROR){
             }
             device_wifi_stop();
+            device_inside->ble_one_connect_flag = 1;
             SYS_LOG_INF("ble Connected");
         } else if(status == BLE_SERVER_STATUS_DISCONNECTED){
             uint8_t res = pc_device_choice_inside(NULL, DATA_PORT_TYPE_BLE_VAL, DISCONNECT);
diff --git a/app/drivers/sertrf/device.h b/app/drivers/sertrf/device.h
index f0ce4d3..67261d1 100644
--- a/app/drivers/sertrf/device.h
+++ b/app/drivers/sertrf/device.h
@@ -96,6 +96,8 @@ typedef struct
     // int (*embedded_write)(device_t *port, const void *data, uint32_t size);
     uint8_t last_color;
 
+    // 每次刚连接ble都会将标志位置一 ，因为连接上app后，app会发送一段字符串，这段字符串我暂时用不到需要抛弃，不然会影响异常飞控固件升级
+    uint8_t ble_one_connect_flag;
 }device_t;
 
 /**
diff --git a/app/drivers/sertrf/sertrf.c b/app/drivers/sertrf/sertrf.c
index ba230d2..98e0958 100644
--- a/app/drivers/sertrf/sertrf.c
+++ b/app/drivers/sertrf/sertrf.c
@@ -118,6 +118,7 @@ void embedded_thread(void* arg)
 }
 void pc_thread(void* arg)
 {
+    static bool app_pc_discard = true;
     while(true)
     {
         uint32_t pc_size = pc_device_get_rx_length(&sertrf.device);
@@ -127,6 +128,12 @@ void pc_thread(void* arg)
             uint8_t data[pc_size];
             pc_device_read(&sertrf.device, data, pc_size);
             // SYS_LOG_INF("data : %s", data);
+            // 由于APP连接上后，会发送一串我用不到的数据，需要丢弃掉，不然会影响我异常飞控固件升级  
+            if(sertrf.device.ble_one_connect_flag == 1)
+            {
+                sertrf.device.ble_one_connect_flag = 0;
+                continue;
+            }
             if(!sertrf.stmisp_device.flag)
                 embedded_device_write(&sertrf.device, data, pc_size);
         }