diff --git a/docs/assets/img/product_pics/core/tough/tough_sch.jpg b/docs/assets/img/product_pics/core/tough/tough_sch.jpg
deleted file mode 100644
index 241af485..00000000
Binary files a/docs/assets/img/product_pics/core/tough/tough_sch.jpg and /dev/null differ
diff --git a/docs/assets/img/product_pics/module/grbl13.2/grbl13.2_02.webp b/docs/assets/img/product_pics/module/grbl13.2/grbl13.2_02.webp
index 23568b4b..6a2eacf0 100644
Binary files a/docs/assets/img/product_pics/module/grbl13.2/grbl13.2_02.webp and b/docs/assets/img/product_pics/module/grbl13.2/grbl13.2_02.webp differ
diff --git a/docs/en/module/goplus2.md b/docs/en/module/goplus2.md
index 8e0dc6a7..d1d56e55 100644
--- a/docs/en/module/goplus2.md
+++ b/docs/en/module/goplus2.md
@@ -124,11 +124,11 @@ Communication protocol: IIC(0x38)
 
 To get example code, please [click here to download](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Module/GoPLUS2)
 
-<el-divider content-position="right">Last updated: 2020-12-28</el-divider>
+<el-divider content-position="right">Last updated: 2021-1-22</el-divider>
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/goplus2-dc-motor-and-servo-driver-module-stm32f0';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/en/module/nb-iot.md b/docs/en/module/nb-iot.md
index 2a490bef..b708ba61 100644
--- a/docs/en/module/nb-iot.md
+++ b/docs/en/module/nb-iot.md
@@ -70,7 +70,7 @@ Power Operation:
 
 ## Include
 
-- 1x NB-IoT module (Only China regional distribution SIM Card)
+- 1x NB-IoT module
 
 ## Applications
 
diff --git a/docs/en/module/servo2.md b/docs/en/module/servo2.md
index 0e6aad60..9690a171 100644
--- a/docs/en/module/servo2.md
+++ b/docs/en/module/servo2.md
@@ -98,7 +98,7 @@ To get the complete code, please click [here](https://github.com/m5stack/M5-Prod
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5stack-new-arrival/products/servo2-module-16-channels-13-2-pca9685';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/zh_CN/module/goplus2.md b/docs/zh_CN/module/goplus2.md
index bdb8d0f4..ac23870c 100644
--- a/docs/zh_CN/module/goplus2.md
+++ b/docs/zh_CN/module/goplus2.md
@@ -127,9 +127,11 @@
 
 点击[此处获取](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Module/GoPLUS2)示例程序
 
+<el-divider content-position="right">Last updated: 2021-1-22</el-divider>
+
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-module/products/goplus2-dc-motor-and-servo-driver-module-stm32f0';
 
    anchor_search(purchase_link);
    scrollFunc();
diff --git a/docs/zh_CN/module/nb-iot.md b/docs/zh_CN/module/nb-iot.md
index 6b41b0a3..e4b58331 100644
--- a/docs/zh_CN/module/nb-iot.md
+++ b/docs/zh_CN/module/nb-iot.md
@@ -55,7 +55,6 @@
 
 ## 包含
 
--  1x Nano IoT SIM卡
 -  1x NB-IoT 模块
 
 ## 应用
diff --git a/docs/zh_CN/module/servo2.md b/docs/zh_CN/module/servo2.md
index de1605d6..40a61bdc 100644
--- a/docs/zh_CN/module/servo2.md
+++ b/docs/zh_CN/module/servo2.md
@@ -97,7 +97,7 @@
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5stack-new-arrival/products/servo2-module-16-channels-13-2-pca9685';
 
    anchor_search(purchase_link);
    scrollFunc();