diff --git a/COMTool/locales/en/LC_MESSAGES/messages.po b/COMTool/locales/en/LC_MESSAGES/messages.po
index 2f399c0..34ac37b 100644
--- a/COMTool/locales/en/LC_MESSAGES/messages.po
+++ b/COMTool/locales/en/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2023-11-15 21:31+0800\n"
+"POT-Creation-Date: 2023-11-15 22:11+0800\n"
 "PO-Revision-Date: 2021-12-04 15:21+0800\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language: en\n"
@@ -685,7 +685,7 @@ msgid "For ASCII protocol(\"binary protocol\" not checked)"
 msgstr ""
 
 #: plugins/graph.py:72
-msgid "\"$\" means start of frame, \",\" means separator"
+msgid "\"$\" means start of frame, end with \"\\n\" \",\" means separator"
 msgstr ""
 
 #: plugins/graph.py:73
@@ -1033,3 +1033,6 @@ msgstr ""
 #~ msgid "Double click to add a gragh widget"
 #~ msgstr ""
 
+#~ msgid "\"$\" means start of frame, \",\" means separator"
+#~ msgstr ""
+
diff --git a/COMTool/locales/ja/LC_MESSAGES/messages.po b/COMTool/locales/ja/LC_MESSAGES/messages.po
index 75ef2b7..43bf789 100644
--- a/COMTool/locales/ja/LC_MESSAGES/messages.po
+++ b/COMTool/locales/ja/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2023-11-15 21:31+0800\n"
+"POT-Creation-Date: 2023-11-15 22:11+0800\n"
 "PO-Revision-Date: 2021-12-04 15:20+0800\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language: ja\n"
@@ -706,7 +706,7 @@ msgid "For ASCII protocol(\"binary protocol\" not checked)"
 msgstr ""
 
 #: plugins/graph.py:72
-msgid "\"$\" means start of frame, \",\" means separator"
+msgid "\"$\" means start of frame, end with \"\\n\" \",\" means separator"
 msgstr ""
 
 #: plugins/graph.py:73
@@ -1046,3 +1046,6 @@ msgstr ""
 #~ msgid "Double click to add a gragh widget"
 #~ msgstr ""
 
+#~ msgid "\"$\" means start of frame, \",\" means separator"
+#~ msgstr ""
+
diff --git a/COMTool/locales/messages.pot b/COMTool/locales/messages.pot
index 900bbba..2cfbe3a 100644
--- a/COMTool/locales/messages.pot
+++ b/COMTool/locales/messages.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2023-11-15 21:31+0800\n"
+"POT-Creation-Date: 2023-11-15 22:11+0800\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -680,7 +680,7 @@ msgid "For ASCII protocol(\"binary protocol\" not checked)"
 msgstr ""
 
 #: plugins/graph.py:72
-msgid "\"$\" means start of frame, \",\" means separator"
+msgid "\"$\" means start of frame, end with \"\\n\" \",\" means separator"
 msgstr ""
 
 #: plugins/graph.py:73
diff --git a/COMTool/locales/zh_CN/LC_MESSAGES/messages.po b/COMTool/locales/zh_CN/LC_MESSAGES/messages.po
index b4ccbab..bba699b 100644
--- a/COMTool/locales/zh_CN/LC_MESSAGES/messages.po
+++ b/COMTool/locales/zh_CN/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: https://github.com/Neutree/COMTool/issues\n"
-"POT-Creation-Date: 2023-11-15 21:31+0800\n"
+"POT-Creation-Date: 2023-11-15 22:11+0800\n"
 "PO-Revision-Date: 2021-12-04 15:20+0800\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language: zh_Hans_CN\n"
@@ -683,8 +683,8 @@ msgid "For ASCII protocol(\"binary protocol\" not checked)"
 msgstr "对于 字符（ASCII）协议（\"二进制协议\"选项未选中）"
 
 #: plugins/graph.py:72
-msgid "\"$\" means start of frame, \",\" means separator"
-msgstr "\"$\" 代表帧开始，\",\" 代表分隔符"
+msgid "\"$\" means start of frame, end with \"\\n\" \",\" means separator"
+msgstr "\"$\" 代表帧开始，已\"\\n\"结尾，\",\" 代表分隔符"
 
 #: plugins/graph.py:73
 msgid ""
diff --git a/COMTool/locales/zh_TW/LC_MESSAGES/messages.po b/COMTool/locales/zh_TW/LC_MESSAGES/messages.po
index e590152..db4aeba 100644
--- a/COMTool/locales/zh_TW/LC_MESSAGES/messages.po
+++ b/COMTool/locales/zh_TW/LC_MESSAGES/messages.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2023-11-15 21:31+0800\n"
+"POT-Creation-Date: 2023-11-15 22:11+0800\n"
 "PO-Revision-Date: 2021-12-04 15:20+0800\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language: zh_Hant_TW\n"
@@ -683,7 +683,7 @@ msgid "For ASCII protocol(\"binary protocol\" not checked)"
 msgstr ""
 
 #: plugins/graph.py:72
-msgid "\"$\" means start of frame, \",\" means separator"
+msgid "\"$\" means start of frame, end with \"\\n\" \",\" means separator"
 msgstr ""
 
 #: plugins/graph.py:73
@@ -1011,3 +1011,6 @@ msgstr ""
 #~ msgid "Double click to add a gragh widget"
 #~ msgstr ""
 
+#~ msgid "\"$\" means start of frame, \",\" means separator"
+#~ msgstr ""
+
diff --git a/COMTool/plugins/graph.py b/COMTool/plugins/graph.py
index 5a6c749..221e102 100644
--- a/COMTool/plugins/graph.py
+++ b/COMTool/plugins/graph.py
@@ -69,7 +69,7 @@ class Plugin(Plugin_Base):
 /*******'''+ _('For ASCII protocol("binary protocol" not checked)') + ''' *******/
 /**
  * $[line name],[x],[y]&lt;,checksum&gt;\\n
- *   ''' + _('"$" means start of frame, "," means separator') + ''',
+ *   ''' + _('"$" means start of frame, end with "\\n" "," means separator') + ''',
  *   ''' + _('checksum is optional, checksum is sum of all bytes in frame except ",checksum".') + '''
  *   ''' + _('e.g.') + '''
  *     "$roll,1.0,2.0\\n"
@@ -85,7 +85,7 @@ class Plugin(Plugin_Base):
     {
         sum += buff[i];
     }
-    snprintf(buff + strlen(buff), buff_len - strlen(buff), ",%d\n", sum & 0xFF);
+    snprintf(buff + strlen(buff), buff_len - strlen(buff), ",%d\\n", sum & 0xFF);
     return strlen(buff);
 }
 
diff --git a/COMTool/version.py b/COMTool/version.py
index ce150e4..1bb93a5 100644
--- a/COMTool/version.py
+++ b/COMTool/version.py
@@ -1,7 +1,7 @@
 
 major = 3
 minor = 3
-dev   = 0
+dev   = 1
 
 __version__ = "{}.{}.{}".format(major, minor, dev)