diff --git a/android-deploy.md b/android-deploy.md
index 9d5c904..00bb7e3 100644
--- a/android-deploy.md
+++ b/android-deploy.md
@@ -11,7 +11,7 @@ pd i debian
 ## Step 2: Deploy AppleMusicDecrypt
 Enter the Debian environment(`pd login debian`)
 ```shell
-apt update && apt install pipx && pipx install poetry && pipx ensurepath && source ~/.bashrc
+apt update && apt install pipx git -y && pipx install poetry && pipx ensurepath && source ~/.bashrc
 git clone https://github.com/WorldObservationLog/AppleMusicDecrypt
 cd AppleMusicDecrypt
 bash ./tools/install-deps.sh
@@ -34,3 +34,12 @@ playlistDirPathFormat = "/sdcard/Music/playlists/{playlistName}"
 ```
 ## Step 4: Run AppleMusicDecrypt
 `poetry run python main.py`
+## Update AppleMusicDecrypt
+```shell
+pd login debian
+cd AppleMusicDecrypt
+git checkout -f && git pull
+poetry update
+cp config.example.toml config.toml
+nano config.toml
+```
diff --git a/src/save.py b/src/save.py
index 0558244..83aa08b 100644
--- a/src/save.py
+++ b/src/save.py
@@ -21,7 +21,8 @@ def save(song: bytes, codec: str, metadata: SongMetadata, playlist: PlaylistInfo
         with open(cover_path.absolute(), "wb") as f:
             f.write(metadata.cover)
     if it(Config).download.saveLyrics and metadata.lyrics:
-        lrc_path = dir_path / Path(song_name + ".lrc")
-        with open(lrc_path.absolute(), "w", encoding="utf-8") as f:
-            f.write(ttml_convent_to_lrc(metadata.lyrics))
+        lrc = ttml_convent_to_lrc(metadata.lyrics)
+        if lrc:
+            lrc_path = dir_path / Path(song_name + ".lrc")
+            lrc_path.write_text(lrc, encoding="utf-8")
     return song_path.absolute()
diff --git a/src/utils.py b/src/utils.py
index 45f5818..ea6efe9 100644
--- a/src/utils.py
+++ b/src/utils.py
@@ -96,7 +96,8 @@ def ttml_convent_to_lrc(ttml: str) -> str:
             h, m, s, ms = 0, 0, 0, 0
             lyric_time: str = lyric.get("begin")
             if not lyric_time:
-                raise NotTimeSyncedLyricsException
+                return ""
+                #raise NotTimeSyncedLyricsException
             if lyric_time.find('.') == -1:
                 lyric_time += '.000'
             match lyric_time.count(":"):