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diff --git a/docs/en/module/gsm.md b/docs/en/module/gsm.md
index 240ed596..b93de048 100644
--- a/docs/en/module/gsm.md
+++ b/docs/en/module/gsm.md
@@ -30,6 +30,8 @@ Power Operation:
?> **M5Stack Fire** has occupied GPIO16 / 17 to connect with the PSRAM by default, it's conflict with TXD / RXD (GPIO16, GPIO17) of GSM module. Therefore, when using the GSM module with the M5Stack Fire, you might have to cut the TXD and RXD from GSM module and wire fly to another set of UART pin
+
+
## Product Features
Product Feature:
diff --git a/docs/en/module/nb-iot.md b/docs/en/module/nb-iot.md
index 4d09005e..c9cceaff 100644
--- a/docs/en/module/nb-iot.md
+++ b/docs/en/module/nb-iot.md
@@ -32,6 +32,7 @@ Power Operation:
?> **M5Stack Fire** has occupied GPIO16 / 17 to connect with the PSRAM by default, it's conflict with TXD / RXD (GPIO16, GPIO17) of NB-IoT module. Therefore, when using the NB-IoT module with the M5Stack Fire, you might have to cut the TXD and RXD from NB-IoT module and wire fly to another set of UART pin
+
## Product Features
diff --git a/docs/en/module/nb-iot_plus.md b/docs/en/module/nb-iot_plus.md
index 14659bf5..7c5a8034 100644
--- a/docs/en/module/nb-iot_plus.md
+++ b/docs/en/module/nb-iot_plus.md
@@ -25,6 +25,8 @@ Power Operation:
?> **M5Stack Fire** has occupied GPIO16 / 17 to connect with the PSRAM by default, it's conflict with TXD / RXD (GPIO16, GPIO17) of NB-IoT Plus module. Therefore, when using the NB-IoT Plus module with the M5Stack Fire, you might have to cut the TXD and RXD from NB-IoT Plus module and wire fly to another set of UART pin
+
+
## Product Features
- Serial communication: UART
- Product Power in : 5V
diff --git a/docs/index.md b/docs/index.md
index 9162b158..c654aaad 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -267,14 +267,14 @@
"TVOC/eCO2":"MINI-UNIT"
};
- const mask_btn = ``
+ const mask_btn = ``
for (var class_num=0; class_num
+
?>**M5Stack Fire** 中的 GPIO 16 / 17 默认与PSRAM连接,这使得GSM模块的TXD / RXD(GPIO16,GPIO17)与其产生冲突.因此,当你使用 M5Stack Fire 去驱动 GSM 模块时,你需要将 GSM 模块的 TXD 与 RXD 切断,然后通过飞线引至另一组 UART 引脚.
+
+
## 产品特性
- SIM卡类型: Nano
diff --git a/docs/zh_CN/module/nb-iot.md b/docs/zh_CN/module/nb-iot.md
index d78ecded..029ed1ac 100644
--- a/docs/zh_CN/module/nb-iot.md
+++ b/docs/zh_CN/module/nb-iot.md
@@ -22,6 +22,8 @@
?>**M5Stack Fire** 中的 GPIO 16 / 17 默认与PSRAM连接,这使得NB-IoT模块的TXD / RXD(GPIO16,GPIO17)与其产生冲突.因此,当你使用 M5Stack Fire 去驱动 NB-IoT 模块时,你需要将 NB-IoT 模块的 TXD 与 RXD 切断,然后通过飞线引至另一组 UART 引脚.
+
+
## 产品特性
- SIM卡类型: Nano
diff --git a/docs/zh_CN/module/nb-iot_plus.md b/docs/zh_CN/module/nb-iot_plus.md
index 25369fa0..9559a022 100644
--- a/docs/zh_CN/module/nb-iot_plus.md
+++ b/docs/zh_CN/module/nb-iot_plus.md
@@ -22,6 +22,8 @@
?>**M5Stack Fire** 中的 GPIO 16 / 17 默认与PSRAM连接,这使得NB-IoT Plus模块的TXD / RXD(GPIO16,GPIO17)与其产生冲突.因此,当你使用 M5Stack Fire 去驱动 NB-IoT Plus模块时,你需要将 NB-IoT Plus模块的 TXD 与 RXD 切断,然后通过飞线引至另一组 UART 引脚.
+
+
## 产品特性
- SIM卡类型: Nano