diff --git a/docs/en/atom/tail485.md b/docs/en/atom/tail485.md
index 039271da..0b34e208 100644
--- a/docs/en/atom/tail485.md
+++ b/docs/en/atom/tail485.md
@@ -107,8 +107,8 @@
 ### PinMap
 
 <table>
- <tr><td>ATOM</td><td>GPIO26(TX)</td><td>GPIO32(RX)</td><td>5V</td><td>GND</td></tr>
- <tr><td>Tail485</td><td>RX</td><td>TX</td><td>5V</td><td>GND</td></tr>
+ <tr><td>ATOM</td><td>GPIO26</td><td>GPIO32</td><td>5V</td><td>GND</td></tr>
+ <tr><td>Tail485</td><td>TX</td><td>RX</td><td>5V</td><td>GND</td></tr>
 </table>
 
 ## Schematic
diff --git a/docs/en/base/w5500PoE.md b/docs/en/base/w5500PoE.md
index 30b1bd15..2ff339a9 100644
--- a/docs/en/base/w5500PoE.md
+++ b/docs/en/base/w5500PoE.md
@@ -174,7 +174,7 @@ If you need to add an RS485 or RS232 interface, make sure to solder the RS485 or
 - **Datasheet** 
     - [W5500](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/base/W5500_datasheet_v1.0.2_1_en.pdf)
     - [SP485EEN](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/hat/SP485EEN_en.pdf)
-    - [MAX232](hhttps://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/atombase/AtomicRS232/MAX232.pdf)
+    - [MAX232](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/atombase/AtomicRS232/MAX232.pdf)
 
 ## Example
 
diff --git a/docs/en/module/comx_lte-data.md b/docs/en/module/comx_lte-data.md
index ec1c830a..be1b1095 100644
--- a/docs/en/module/comx_lte-data.md
+++ b/docs/en/module/comx_lte-data.md
@@ -155,7 +155,7 @@ To get complete code, please click [here](https://github.com/m5stack/M5-ProductE
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-lte-data-modulea7600c';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/en/module/comx_lte.md b/docs/en/module/comx_lte.md
index 173dacbc..3ed28576 100644
--- a/docs/en/module/comx_lte.md
+++ b/docs/en/module/comx_lte.md
@@ -182,7 +182,7 @@ To get complete code, please click [here](https://github.com/m5stack/M5-ProductE
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-lte-modulesim7600g';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/en/module/comx_nb-iot.md b/docs/en/module/comx_nb-iot.md
index 06753401..db7b8519 100644
--- a/docs/en/module/comx_nb-iot.md
+++ b/docs/en/module/comx_nb-iot.md
@@ -163,7 +163,7 @@ To get complete code, please click [here](https://github.com/m5stack/M5-ProductE
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-nb-iot-modulesim7020g';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/zh_CN/atom/tail485.md b/docs/zh_CN/atom/tail485.md
index 3d310d2b..4193ac6e 100644
--- a/docs/zh_CN/atom/tail485.md
+++ b/docs/zh_CN/atom/tail485.md
@@ -107,8 +107,8 @@
 ### 管脚映射
 
 <table>
- <tr><td>ATOM</td><td>GPIO26(TX)</td><td>GPIO32(RX)</td><td>5V</td><td>GND</td></tr>
- <tr><td>Tail485</td><td>RX</td><td>TX</td><td>5V</td><td>GND</td></tr>
+ <tr><td>ATOM</td><td>GPIO26</td><td>GPIO32</td><td>5V</td><td>GND</td></tr>
+ <tr><td>Tail485</td><td>TX</td><td>RX</td><td>5V</td><td>GND</td></tr>
 </table>
 
 ## 原理图
diff --git a/docs/zh_CN/base/w5500PoE.md b/docs/zh_CN/base/w5500PoE.md
index 1acf15a5..a2c021a4 100644
--- a/docs/zh_CN/base/w5500PoE.md
+++ b/docs/zh_CN/base/w5500PoE.md
@@ -173,7 +173,7 @@ HT3.96连接器的 6 个引脚默认悬空，你可以根据需求选择连接RS
 - **Datasheet** 
     - [W5500](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/base/W5500_datasheet_v1.0.2_1_en.pdf)
     - [SP485EEN](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/hat/SP485EEN_en.pdf)
-    - [MAX232](hhttps://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/atombase/AtomicRS232/MAX232.pdf)
+    - [MAX232](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/atombase/AtomicRS232/MAX232.pdf)
 
 ## 案例程序
 
diff --git a/docs/zh_CN/module/comx_lte-data.md b/docs/zh_CN/module/comx_lte-data.md
index c6f26041..ed2b5147 100644
--- a/docs/zh_CN/module/comx_lte-data.md
+++ b/docs/zh_CN/module/comx_lte-data.md
@@ -157,7 +157,7 @@
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-lte-data-modulea7600c';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/zh_CN/module/comx_lte.md b/docs/zh_CN/module/comx_lte.md
index 4c59d8e2..cfcc3970 100644
--- a/docs/zh_CN/module/comx_lte.md
+++ b/docs/zh_CN/module/comx_lte.md
@@ -179,7 +179,7 @@
 
 <script>
 
-   var purchase_link = 'https://m5stack.com/collections/m5-module/products/m5stack-nb-iot-module';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-lte-modulesim7600g';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/zh_CN/module/comx_nb-iot.md b/docs/zh_CN/module/comx_nb-iot.md
index 761c5b44..470e6d60 100644
--- a/docs/zh_CN/module/comx_nb-iot.md
+++ b/docs/zh_CN/module/comx_nb-iot.md
@@ -159,7 +159,7 @@
 </table>
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/com-nb-iot-modulesim7020g';
 
    anchor_search(purchase_link);
    scrollFunc();