diff --git a/docs/en/app/demo-board.md b/docs/en/app/demo-board.md
index 18049e14..fe885e4d 100644
--- a/docs/en/app/demo-board.md
+++ b/docs/en/app/demo-board.md
@@ -6,7 +6,7 @@
 
 ## Tutorial&Quick-Start
 
-<a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/Demo-Board_cn.pdf"><el-tag effect="plain">Tutorial&PDF</el-tag></a>
+<a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/Demo-Board_en.pdf"><el-tag effect="plain">Tutorial&PDF</el-tag></a>
 
 ## Description
 
diff --git a/docs/en/base/m5go_bottom2.md b/docs/en/base/m5go_bottom2.md
index 3a1385e4..d67b871f 100644
--- a/docs/en/base/m5go_bottom2.md
+++ b/docs/en/base/m5go_bottom2.md
@@ -75,7 +75,7 @@
     </div>
     <div>
         <video id="example_video" controls>
-            <source src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/video/Product_example_video/App/PM2.5.mp4" type="video/mp4">
+            <source src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/video/Product_example_video/Base/M5GO_BOTTOM2_video.mp4" type="video/mp4">
         </video>
         <div class="easyloader-mask">
         <a>
diff --git a/docs/zh_CN/api/coreink/system_api.md b/docs/zh_CN/api/coreink/system_api.md
index 0c7fca12..e37383b9 100644
--- a/docs/zh_CN/api/coreink/system_api.md
+++ b/docs/zh_CN/api/coreink/system_api.md
@@ -213,10 +213,49 @@ void loop() {
 
 `int shutdown( const RTC_DateTypeDef &RTC_DateStruct, const RTC_TimeTypeDef &RTC_TimeStruct);`
 
-<!-- **使用示例:**
+
+**使用示例:**
 
 ```
+#include "M5CoreInk.h"
 
+Ink_Sprite InkPageSprite(&M5.M5Ink);
 
+void ButtonTest(char* str)
+{
+    InkPageSprite.clear();
+    InkPageSprite.drawString(35,59,str);
+    InkPageSprite.pushSprite();
+    delay(2000);
+}
 
-``` -->
\ No newline at end of file
+void setup() {
+
+    M5.begin();
+    if( !M5.M5Ink.isInit())
+    {
+        Serial.printf("Ink Init faild");
+    }
+    M5.M5Ink.clear();
+    delay(1000);
+    //creat ink refresh Sprite
+    if( InkPageSprite.creatSprite(0,0,200,200,true) != 0 )
+    {
+        Serial.printf("Ink Sprite creat faild");
+    }
+
+    ButtonTest("Press Btn PWR for sleep , after 5 sec wakeup.");
+}
+
+void loop() {
+    if( M5.BtnPWR.wasPressed())
+    {
+        Serial.printf("Btn %d was pressed \r\n",BUTTON_EXT_PIN);
+        M5.shutdown(20);
+        // M5.shutdown(RTC_TimeTypeDef(10,2,0));
+    }
+
+    M5.update();
+}
+
+```
\ No newline at end of file
diff --git a/docs/zh_CN/base/m5go_bottom2.md b/docs/zh_CN/base/m5go_bottom2.md
index d20dde1c..2395581c 100644
--- a/docs/zh_CN/base/m5go_bottom2.md
+++ b/docs/zh_CN/base/m5go_bottom2.md
@@ -79,7 +79,7 @@
     </div>
     <div>
         <video id="example_video" controls>
-            <source src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/video/Product_example_video/App/PM2.5.mp4" type="video/mp4">
+            <source src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/video/Product_example_video/Base/M5GO_BOTTOM2_video.mp4" type="video/mp4">
         </video>
         <div class="easyloader-mask">
         <a>