diff --git a/audio_prompts/factory_test/customer_fs/factory_boot_zh.mp3 b/audio_prompts/factory_test/customer_fs/factory_boot_zh.mp3
index 5eac122..220e412 100644
Binary files a/audio_prompts/factory_test/customer_fs/factory_boot_zh.mp3 and b/audio_prompts/factory_test/customer_fs/factory_boot_zh.mp3 differ
diff --git a/audio_prompts/factory_test/customer_fs/factory_pass_zh.mp3 b/audio_prompts/factory_test/customer_fs/factory_pass_zh.mp3
index 5bf9364..2a43654 100644
Binary files a/audio_prompts/factory_test/customer_fs/factory_pass_zh.mp3 and b/audio_prompts/factory_test/customer_fs/factory_pass_zh.mp3 differ
diff --git a/audio_prompts/factory_test/customer_fs/factory_shutdown_zh.mp3 b/audio_prompts/factory_test/customer_fs/factory_shutdown_zh.mp3
index fd5c582..6f8aa2c 100644
Binary files a/audio_prompts/factory_test/customer_fs/factory_shutdown_zh.mp3 and b/audio_prompts/factory_test/customer_fs/factory_shutdown_zh.mp3 differ
diff --git a/docs/factory_test_windows_fs.md b/docs/factory_test_windows_fs.md
index 6abc933..9b8081a 100644
--- a/docs/factory_test_windows_fs.md
+++ b/docs/factory_test_windows_fs.md
@@ -118,7 +118,7 @@ ql-config\config\EG800AKCN_11LG\customer_fs.bin
 
 ## 6. 烧录后验证
 
-1. 长按开机后应听到“设备已开机，开始硬件测试啦”。
+1. 长按开机后应听到“设备已开机，开始硬件测试”。
 2. 串口应出现 `BOOT_AUDIO` 的 `node_result=PASS`。
 3. 如果返回 `1002`，说明 APP 已更新但 customer_fs 没有更新，或文件名/层级错误。
 4. 如果返回 `1003`，文件存在但无法解码或播放超时；检查 MP3 是否为完整文件。