diff --git a/hgdriver/hgdev/hg_scanner.cpp b/hgdriver/hgdev/hg_scanner.cpp
index 3b5898c..4b1f8ec 100644
--- a/hgdriver/hgdev/hg_scanner.cpp
+++ b/hgdriver/hgdev/hg_scanner.cpp
@@ -3688,6 +3688,7 @@ int hg_scanner::save_usb_data(std::shared_ptr<tiny_buffer> data)
 	}
 	if (!data->swap())
 	{
+		VLOG_MINI_1(LOG_LEVEL_DEBUG_INFO, "USB packet(%04d) swap failed.\n", usb_img_index_);
 		ret = SCANNER_ERR_OPEN_FILE_FAILED;
 	}
 	else
@@ -3723,7 +3724,7 @@ int hg_scanner::save_usb_data(std::shared_ptr<tiny_buffer> data)
 		{
 			VLOG_MINI_1(LOG_LEVEL_WARNING, "Warning: memory usage(%.2fMB) maybe leading exception!\r\n", Memoryusae);
 		}
-		imgs_.Put(data, data->size(), hg_scanner_mgr::unique_id());
+		imgs_.Put(data, data->size(), usb_img_index_);
 		if (wait_img_.is_waiting())
 			wait_img_.notify();
 	}