diff --git a/docs/en/tool/usb_downloader.md b/docs/en/tool/usb_downloader.md
index b1423d0d..c20b3835 100644
--- a/docs/en/tool/usb_downloader.md
+++ b/docs/en/tool/usb_downloader.md
@@ -14,6 +14,8 @@ TXD led, RXD led, Power led and 6pin @ 2.54mm bus sockets.
 
 ## PARAMETER
 
+*There are two reserved pins(RTS, DTR) on M5Stack USB Downloader for other applications.*
+
 |       PinNumber       |          PinName          |
 | :-------------------: |:------------------------: |
 |           1           |           GND             |
@@ -25,9 +27,9 @@ TXD led, RXD led, Power led and 6pin @ 2.54mm bus sockets.
 
 <img src="assets/img/product_pics/tool/usb_downloader_03.png"  width="60%" height="60%">
 
-### NOTE
+**Usage:**
 
-There are two reserved pins(RTS, DTR) on M5Stack USB Downloader for other applications.
+<img src="assets/img/product_pics/tool/usb_downloader_04.png">
 
 ## Include
 
diff --git a/docs/zh_CN/tool/usb_downloader.md b/docs/zh_CN/tool/usb_downloader.md
index 0ab5cf18..c375ea9f 100644
--- a/docs/zh_CN/tool/usb_downloader.md
+++ b/docs/zh_CN/tool/usb_downloader.md
@@ -40,7 +40,3 @@
 ## 原理图
 
 <img src="assets/img/product_pics/tool/usb_downloader_sch.png">
-
-<!-- <figure>
-    <img src="assets/img/product_pics/unit/M5GO_Unit_moisture.jpg" height="50" width="49">
-</figure> -->