diff --git a/docs/tutorial-basics/pic/flash.png b/docs/tutorial-basics/pic/flash.png
new file mode 100644
index 0000000..6e6435c
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diff --git a/docs/tutorial-basics/pic/flash2.png b/docs/tutorial-basics/pic/flash2.png
new file mode 100644
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diff --git a/docs/tutorial-basics/usb-flash.md b/docs/tutorial-basics/usb-flash.md
index 6458bbc..650274a 100644
--- a/docs/tutorial-basics/usb-flash.md
+++ b/docs/tutorial-basics/usb-flash.md
@@ -122,6 +122,10 @@ hi3798mv300的盒子目前没有发现通用的短接办法，
 - 整个过程如果你无法使用HDMI屏幕观察，也可以通过U盘的闪烁灯（常闪）判断是否在刷入；  
 - 如果刷完底包后一直无限重启，就是刷错了固件包，请重新更换正确的固件包。  
 
+![usbformat](pic/flash.png)  
+![usbformat](pic/flash2.png)  
+
+
 ### 查找 IP 进入管理页面