diff --git a/docs/en/hat/hat-env.md b/docs/en/hat/hat-env.md
index 627f6d87..8264d0f3 100644
--- a/docs/en/hat/hat-env.md
+++ b/docs/en/hat/hat-env.md
@@ -36,6 +36,11 @@
- Weather Station
- Compass
+## Schematic
+
+- **[Schematic](https://github.com/m5stack/M5-Schematic/blob/master/Hat/StickHat_ENV.pdf)**
+
+
## Links
diff --git a/docs/en/uiflow/uiflow_home_page.md b/docs/en/uiflow/uiflow_home_page.md
index fc5d204a..569723ba 100644
--- a/docs/en/uiflow/uiflow_home_page.md
+++ b/docs/en/uiflow/uiflow_home_page.md
@@ -78,7 +78,6 @@
-
\ No newline at end of file
diff --git a/docs/en/unit/m5camera.md b/docs/en/unit/m5camera.md
index a227f3d5..c19dbc96 100644
--- a/docs/en/unit/m5camera.md
+++ b/docs/en/unit/m5camera.md
@@ -15,11 +15,6 @@ what this software can do?
- Open up web browser on your phone and visit 192.168.4.1
- Then here comes the picture. Video is about 5-6 frames per senconds. not super fast.
-The hardware also comes with some reserved weld pad, just in case you want put these chips back on board.
-- 9-axis gyroscope (MPU6050)
-- pressure sensor (BME280)
-- **Digital silicon microphone (SPM1423)**
-- Lipo Battery power pins
diff --git a/docs/en/unit/m5camera_f.md b/docs/en/unit/m5camera_f.md
index 0b8fd3ca..d7ef781b 100644
--- a/docs/en/unit/m5camera_f.md
+++ b/docs/en/unit/m5camera_f.md
@@ -18,12 +18,6 @@ what this software can do?
- Open up web browser on your phone and visit 192.168.4.1
- Then here comes the picture. Video is about 5-6 frames per senconds. not super fast.
-The hardware also comes with some reserved weld pad, just in case you want put these chips back on board.
-- 9-axis gyroscope (MPU6050)
-- pressure sensor (BME280)
-- **Digital silicon microphone (SPM1423)**
-- Lipo Battery power pins
-
diff --git a/docs/en/unit/m5camera_x.md b/docs/en/unit/m5camera_x.md
index 4e53959c..6a4f9e20 100644
--- a/docs/en/unit/m5camera_x.md
+++ b/docs/en/unit/m5camera_x.md
@@ -16,11 +16,6 @@ what this software can do?
- Open up web browser on your phone and visit 192.168.4.1
- Then here comes the picture. Video is about 5-6 frames per senconds. not super fast.
-The hardware also comes with some reserved weld pad, just in case you want put these chips back on board.
-- 9-axis gyroscope (MPU6050)
-- pressure sensor (BME280)
-- **Digital silicon microphone (SPM1423)**
-- Lipo Battery power pins
diff --git a/docs/zh_CN/uiflow/introduction.md b/docs/zh_CN/uiflow/introduction.md
index f6b05cd4..ac4e9b07 100644
--- a/docs/zh_CN/uiflow/introduction.md
+++ b/docs/zh_CN/uiflow/introduction.md
@@ -82,7 +82,6 @@
>开机后，等待LED指示灯红色变成绿色（这表示Atom连接网络成功），在电脑浏览器直接访问[flow.m5stack.com](http://flow.m5stack.com/)进入UIFlow编程页面
-
#### 填写API Key
>进入UIFlow后，点击页面右上角的菜单栏中的设置按钮，输入对应设备上的API Key，点击OK保存，等待提示连接成功
@@ -149,7 +148,6 @@
* [M5GO编程入门教程](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/UIFlow-Book-zh_cn.pdf)
-