diff --git a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/audiohw.xc b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/audiohw.xc
index 85a3281..fb1f66f 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/audiohw.xc
+++ b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/audiohw.xc
@@ -607,8 +607,8 @@ static void tx1_ui_request_reset_settings(void)
         debug_printf("Factory reset: lfs_format_all err=%d\n", fmt_res);
     }
 
-    debug_printf("Factory reset: delay 500ms\n");
-    delay_milliseconds(500);
+    debug_printf("Factory reset: delay 100ms\n");
+    delay_milliseconds(100);
     device_reboot();
     while (1) {
         /* 改动原因：reboot 后不应继续执行；空循环防止优化 */