diff --git a/ble_through/ble_cmd_app.h b/ble_through/ble_cmd_app.h
index 3ec9b46..9f1bc44 100644
--- a/ble_through/ble_cmd_app.h
+++ b/ble_through/ble_cmd_app.h
@@ -51,13 +51,6 @@ typedef struct {
 } ble_app_proto_cmd_sync_state_t;
 
 typedef struct {
-  int32_t firmware_version;
-  int32_t blestack_version;
-  int32_t bootloader_version;
-  int32_t hardware_version;
-} ble_app_proto_cmd_read_version_t;
-
-typedef struct {
   uint8_t placeholder;
 } ble_app_proto_report_client_heart_t;
 
diff --git a/ble_through/ble_proto_packet.h b/ble_through/ble_proto_packet.h
index 2863a37..759d5ca 100644
--- a/ble_through/ble_proto_packet.h
+++ b/ble_through/ble_proto_packet.h
@@ -33,6 +33,7 @@ typedef struct {
   uint8_t frame_index;
   uint8_t cmd;
   union {
+    // °üÀàÈÝ
     ble_master_start_scan_t      ble_master_start_scan;
     ble_master_connected_event_t ble_master_connected_event;
     ble_master_scan_result_t     ble_master_scan_result;